What does the following element description actually mean hydrogen 2? a uranium atom with 92 protons and 146 neutrons. What does the following element description actually mean? hydrogen- 2. a hydrogen with one neutron and one proton. Click to see full answer.
What is the best way to describe a hydrogen atom?
What does the following element description actually mean hydrogen 2? a uranium atom with 92 protons and 146 neutrons.
What are the properties of hydrogen?
· two hydrogen atoms. a molecule of hydrogen gas. a hydrogen with one neutron and one proton. a hydrogen with two protons. a hydrogen with two neutrons
What is the other name of hydrogen gas?
· Answers: 3, question: answers Sorry i dont understand the question can you rephase it? What does the following element description actually mean? hydrogen-2 - allnswers...
What is the chemical formula for hydrogen?
Hydrogen combines with other elements to form numerous compounds. Some of the common ones are: water (H 2 O), ammonia (NH 3), methane (CH 4), table sugar (C 12 H 22 O 11), hydrogen peroxide (H 2 O 2) and hydrochloric acid (HCl). Hydrogen has three common isotopes. The simplest isotope, called protium, is just ordinary hydrogen.
See more
· The molecular formula of hydrogen is H 2. Hydrogen has been recognized as a convenient, clean burning fuel. It can be stored as a compressed gas or as a liquid and is suitable for internal combustion engines in automobiles. Hydrogen itself is non-toxic and not carcinogenic.The hydrogen can be produced from coal and water.
What is 2 hydrogen called?
deuteriumdeuterium, (D, or 2H), also called heavy hydrogen, isotope of hydrogen with a nucleus consisting of one proton and one neutron, which is double the mass of the nucleus of ordinary hydrogen (one proton). Deuterium has an atomic weight of 2.014.
What does the 2 in hydrogen-2 represent?
The subscript "2" means that two atoms of the element hydrogen have joined together to form a molecule.
What does an atom of hydrogen-2 contains?
Deuterium (or hydrogen-2, symbol 2 or deuterium, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other being protium, or hydrogen-1). The nucleus of a deuterium atom, called a deuteron, contains one proton and one neutron, whereas the far more common protium has no neutrons in the nucleus.
What does the following element description actually mean 23892U?
What does the following element description actually mean? 23892U. A.a uranium atom with 92 protons and 146 neutrons.
What is the atomic number for hydrogen-2?
The atomic number of hydrogen-2 is one. This is because the number of protons remains the same in all isotopes of an element.
How many protons does hydrogen-2 have?
one protonHydrogen-2 (Deuterium) A deuterium atom contains one proton, one neutron, and one electron.
What is the atomic mass of hydrogen-2?
2.014 101 7781The naturally occurring hydrogen sample with the lowest atomic weight, δ(2H) = −836 ‰ and Ar(H) = 1.007 8507, is H2 gas collected from a natural gas well in Kansas, USA....Hydrogen.IsotopeAtomic mass (Da)Isotopic abundance (amount fraction)2H2.014 101 7781(8)[0.000 01, 0.000 28]1 more row
How many neutrons does hydrogen-2 have?
one neutronDeuterium, or hydrogen-2 (bottom left) has one neutron.
How do the isotopes of hydrogen 1 and hydrogen-2 differ?
Hydrogen-2 has one neutron; hydrogen-1 has none. Hydrogen-2 has two protons; hydrogen-1 has one.
What does the following element description actually mean 186O?
186O. an oxygen atom with 6 protons and 12 neutrons.
What does the following element description actually mean Fe 57?
What does the following element description actually mean? iron-57. iron with a mass number of 57. iron with a sum of the neutrons and the protons equal to 57.
Which element has the atomic number 12?
MagnesiumMagnesium - Element information, properties and uses | Periodic Table.
Why is hydrogen named hydro?
3 History. The name derives from the Greek hydro for "water" and genes for "forming" because it burned in air to form water. Hydrogen was discovered by the English physicist Henry Cavendish in 1766. Scientists had been producing hydrogen for years before it was recognized as an element.
What is hydrogen used for?
Great quantities of hydrogen are required commercially for nitrogen fixation using the Haber ammonia process, and for the hydrogenation of fats and oils. It is also used in large quantities in methanol production, in hydrodealkylation, hydrocracking, and hydrodesulfurization. Other uses include rocket fuel, welding, producing hydrochloric acid, reducing metallic ores, and filling balloons.
What is the difference between deuterium and tritium?
Deuterium is used as a moderator to slow down neutrons. Tritium atoms are also present but in much smaller proportions. Tritium is readily produced in nuclear reactors and is used in the production of the hydrogen (fusion) bomb. It is also used as a radioactive agent in making luminous paints, and as a tracer.
What is the only element with two isotopes?
Stable Isotope Count. The ordinary isotope of hydrogen, H, is known as Protium, the other two isotopes are Deuterium (a proton and a neutron) and Tritium (a protron and two neutrons). Hydrogen is the only element whose isotopes have been given different names.
Why is the 2H abundance of human hair important?
This is possible because hair stores a daily record of the hydrogen isotopic composition of intake water , which correlates to local meteoric water [18], [21].
How many isotopes does hydrogen have?
Hydrogen has three common isotopes. The simplest isotope, called protium, is just ordinary hydrogen. The second, a stable isotope called deuterium, was discovered in 1932. The third isotope, tritium, was discovered in 1934.
How much weight can hydrogen lift?
The lifting power of 1 cubic foot of hydrogen gas is about 0.07 lb at °C, 760 mm pressure.
What is the chemical formula for hydrogen?
Hydrogen is the non-metal with the chemical symbol H. The molecular formula of hydrogen is H 2. Hydrogen has been recognized as a convenient, clean burning fuel. It can be stored as a compressed gas or as a liquid and is suitable for internal combustion engines in automobiles.
What happens when nitrogen combines with hydrogen?
Atmospheric nitrogen combines with hydrogen results in the production of ammonia.
What is the chemical name for NH3?
Hydrogen is essential for the production of ammonia (a chemical compound with the formula NH3) for use in fertilizer making. Hydrogen gas, as used in margarine, is used as a hydrogenating agent for polyunsaturated fats.
What temperature does a flame of oxygen and hydrogen have?
The flame of oxygen and hydrogen can generate a temperature of 2800oC. This oxy-hydrogen flame is used for cutting and welding metals. Used for the hydrogenation of vegetable oils that is converting edible vegetable oils into vanaspati ghee.
How is hydrogen prepared?
Two such methods are listed below. Reacting natural gas with steam of very high temperature in order to obtain a mixture of hydrogen gas, carbon monoxide, and carbon dioxide.
What gas is used to fill weather balloons?
Equal volume of hydrogen and helium gas is used for filling weather observation balloons.
Is hydrogen a carcinogen?
Hydrogen itself is non-toxic and not carcinogenic.The hydrogen can be produced from coal and water. It is the critical element in the production of polyurethane plastics.
How many atomic mass units does bromine have?
The atomic mass of bromine is reported in the periodic table as 79.904 atomic mass units. Choose the most likely set of mass numbers for these two bromine isotopes. The isotope lithium-7 has a mass of 7.0160 atomic mass units, and the isotope lithium-6 has a mass of 6.0151 atomic mass units.
Which element has a greater likelihood of passing through tissue?
C. Neutrons carry no electric charge and thus have a greater likelihood of passing through the tissue. The element bromine, Br (atomic number 35), has two major isotopes of similar abundance, both around 50 percent. The atomic mass of bromine is reported in the periodic table as 79.904 atomic mass units.
What is the mass of 14-nitrogen?
The isotope 14-nitrogen has a mass of 14.003 amu , and the isotope nitrogen-15 has a mass of 15.000 amu . Given that 99.635 % of all nitrogen atoms found in nature are 14-nitrogen and 0.365 % are nitrogen-15, find the atomic mass of nitrogen, N (atomic number 7). m = 14.007 amu. A cat strolls across your backyard.
How many amu are in nitrogen-15?
The isotope 14-nitrogen has a mass of 14.003 amu , and the isotope nitrogen-15 has a mass of 15.000 amu .
What is the difference between an electron and a light?
An electron is jumping from a low energy state to a high energy state with the difference in energy being converted to light. E. An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light. E.
Is gas empty space?
A. No. Only gases are considered to be 99.9 percent empty space. Liquids and solids are not.
How are atoms ordered in the periodic table?
Atoms in the periodic table are ordered by increasing atomic number.
Is a textbook made of atoms?
Yes. A textbook like all material things is made up of atoms, which are considered to be 99.9 percent empty space.
What are the different types of hydrogen?
Hydrogen is available in different forms, such as compressed gaseous hydrogen, liquid hydrogen, and slush hydrogen (composed of liquid and solid), as well as solid and metallic forms. The Hydrogen Atom Many of the hydrogen atom’s chemical properties arise from its small size, such as its propensity to form covalent bonds, flammability, ...
What is the bonding of hydrogen and oxygen?
When hydrogen bonds with fluorine, oxygen, or nitrogen, it can participate in a form of medium-strength noncovalent (intermolecular) bonding called hydrogen bonding, which is critical to the stability of many biological molecules. Compounds that have hydrogen bonding with metals and metalloids are known as hydrides.
How many neutrons does hydrogen have?
Hydrogen has one one proton and one electron; the most common isotope, protium ( 1 H), has no neutrons. Hydrogen has a melting point of -259.14 °C and a boiling point of -252.87 °C. Hydrogen has a density of 0.08988 g/L, making it less dense than air. It has two distinct oxidation states, (+1, -1), which make it able to act as both an oxidizing ...
Why is hydrogen so rare?
However, monoatomic hydrogen is rare on Earth is rare due to its propensity to form covalent bonds with most elements. At standard temperature and pressure, hydrogen is a nontoxic, nonmetallic, odorless, tasteless, colorless, and highly combustible diatomic gas with the molecular formula H 2.
How does hydrogen gas explode?
Hydrogen gas can also explode in a mixture of chlorine (from 5 to 95 percent). These mixtures can explode in response to a spark, heat, or even sunlight. The hydrogen autoignition temperature (the temperature at which spontaneous combustion will occur) is 500 °C. Pure hydrogen-oxygen flames emit ultraviolet light and are invisible to the naked eye. As such, the detection of a burning hydrogen leak is dangerous and requires a flame detector. Because hydrogen is buoyant in air, hydrogen flames ascend rapidly and cause less damage than hydrocarbon fires. H 2 reacts with oxidizing elements, which in turn react spontaneously and violently with chlorine and fluorine to form the corresponding hydrogen halides.
What is the bonding of hydrogen with metals and metalloids?
Compounds that have hydrogen bonding with metals and metalloids are known as hydrides. Oxidation of hydrogen removes its electron and yields the H + ion. Often, the H + in aqueous solutions is referred to as the hydronium ion (H 3 O + ). This species is essential in acid-base chemistry.
What is the enthalpy of hydrogen gas?
The enthalpy of combustion for hydrogen is -286 kJ/mol, and is described by the equation:
How many protons and electrons are in hydrogen?
Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. The chemical symbol for Hydrogen is H.
What is the crystal structure of hydrogen?
A possible crystal structure of Hydrogen is hexagonal structure.
How many protons does helium have?
Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. The chemical symbol for Helium is He.
What is the charge of an atom?
Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. In a neutral atom there are as many electrons as protons moving about nucleus. It is the electrons that are responsible for the chemical bavavior of atoms, and which identify the various chemical elements.
How is atomic weight determined?
Therefore it is determined by the mass number (number of protons and neutrons).
How are the chemical properties of a solid, liquid, gas, and plasma determined?
The chemical properties of the atom are determined by the number of protons, in fact, by number and arrangement of electrons. The configuration of these electrons follows from the principles of quantum mechanics. The number of electrons in each element’s electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. In the periodic table, the elements are listed in order of increasing atomic number Z.
What is the density of a substance?
Since the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance, it is obvious, the density of a substance strongly depends on its atomic mass and also on the atomic number density (N; atoms/cm 3 ),
What is the electron in a hydrogen atom?
The hydrogen atom consists of a single negatively charged electron that moves about a positively charged proton ( (Figure) ). In Bohr’s model, the electron is pulled around the proton in a perfectly circular orbit by an attractive Coulomb force.
Which model describes the electron as a particle that moves around the proton in well-defined orbits?
The Bohr model describes the electron as a particle that moves around the proton in well-defined orbits. Schrödinger’s model describes the electron as a wave, and knowledge about the position of the electron is restricted to probability statements. The total energy of the electron in the ground state (and all excited states) is the same for both models. However, the orbital angular momentum of the ground state is different for these models. In Bohr’s model, , and in Schrödinger’s model, .
What is the simplest atom in nature?
Use quantum numbers to calculate important information about the hydrogen atom. The hydrogen atom is the simplest atom in nature and, therefore, a good starting point to study atoms and atomic structure. The hydrogen atom consists of a single negatively charged electron that moves about a positively charged proton ( (Figure) ).
What is the force between the electron and proton?
For the special case of a hydrogen atom, the force between the electron and proton is an attractive Coulomb force. Notice that the potential energy function U ( r) does not vary in time.
Does the electron radiate in Bohr's model?
where Notice that this expression is identical to that of Bohr’s model. As in the Bohr model, the electron in a particular state of energy does not radiate.
