The halogens make up group or family 17 in the periodic table. They are five elements: chlorine (Cl) fluorine
Fluorine
Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive, as it reacts with almost all other elements, except for helium and …
What elements are members of the halogen family?
What elements are member of the halogen family? They are 5 plus one artificially created (tennessine or Ts)... The halogens make up group or family 17 in the periodic table. astatine (At). But astatine is not purely halogen as it is radioactive.
What is the electronic configuration of the halogen group?
The halogens are the 17thgroup of the periodic table. They contain 7 electrons in the valence shell and have general valence shell electronic configuration of ns2np5. Elements of halogen group are: Elements Atomic number Electronic configuration Group member Period Flourine 9 [He]2s22p5 17 2 Chlorine 17 [Ne]3s23p5 17 3 Bromine 35
Where are halogen elements located on the periodic table?
She has taught science courses at the high school, college, and graduate levels. The halogen elements are located in group 17 or VIIA of the periodic table, which is the second-to-last column of the chart. This is a list of elements that belong to the halogen group and a look at the properties that they share in common.
Why do halogen elements have 7 valence electrons?
They produce salts with sodium, of which table salt (sodium chloride, NaCl) is the most well-known. The halogen elements have seven valence electrons in their outermost electron shell. Therefore, when these elements can receive an electron from another atom, they form very stable compounds since their outermost shell is full.
What are halogen elements?
The halogen elements are the six elements in Group 17 of the periodic table. Group 17 occupies the second column from the right in the periodic tab...
What are the major properties of the halogen elements?
Halogen elements are very reactive. With sodium, they produce salts, of which table salt (sodium chloride, NaCl) is the most well known. Each halog...
What are some uses of halogen elements?
Chlorine is used to purify water. In addition, chlorine is part of table salt, sodium chloride, which is one of the most widely used chemical compo...
Why are these elements called halogens?
When these elements react with sodium, they produce salts. The most well known of these is sodium chloride, or common table salt (also called halit...
What are the elements in the halogen group?
The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts). Learn more about the properties of halogens in this article.
How many valence electrons does a halogen have?
They produce salts with sodium, of which table salt (sodium chloride, NaCl) is the most well-known. The halogen elements have seven valence electrons in their outermost electron shell. Therefore, when these elements can receive an electron from another atom, they form very stable compounds since their outermost shell is full.
What are the elements in Group 17?
Group 17 is the second column from the right in the periodic table and contains six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (As), and tennessine (Ts). Astatine and tennessine are radioactive elements with very short half-lives ...
What is the difference between chlorine and fluorine?
Chlorine is used to purify water. Chlorine also is part of salt, sodium chloride, which is one of the most widely used chemical compounds. Fluorine is used in fluorides, which are added to water supplies to prevent tooth decay. Iodine is used as an antiseptic.
Which element has the greatest difficulty in oxidizing?
The oxidizing strength of the halogens increases in the same order—i.e., from astatine to fluorine. Therefore, of the halogen elements, elemental fluorine is prepared with the greatest difficulty and iodine with the least. As a class, the halogen elements are nonmetals, but astatine shows certain properties resembling those of the metals.
Which element is the most reactive?
Fluorine is the most reactive of the halogens and, in fact, of all elements, and it has certain other properties that set it apart from the other halogens. Chlorine is the best known of the halogen elements. The free element is widely used as a water-purification agent, and it is employed in a number of chemical processes.
What is the group 17 of LibreTexts?
The Chemistry LibreTexts Library - Group 17: The Halogens