Group 3A (or IIIA) of the periodic table
Periodic table
The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons), electron configurations, and recurring chemical properties. This ordering shows periodic trends, such as elements with similar behavior in the same colu…
Metalloid
A metalloid is a chemical element with properties in between, or that are a mixture of, those of metals and nonmetals. There is neither a standard definition of a metalloid nor complete agreement on the elements appropriately classified as such. Despite the lack of specificity, the term remains in use in the literature of chemistry.
Boron
Boron is a chemical element with the symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust. Boron is concentrated on Earth by the water-solubility of it…
Gallium
Gallium is a chemical element with the symbol Ga and atomic number 31. Elemental gallium is a soft, silvery blue metal at standard temperature and pressure; however in its liquid state it becomes silvery white. If too much force is applied, the gallium may fracture conchoidally. It is in group …
Thallium
Thallium is a chemical element with the symbol Tl and atomic number 81. It is a gray post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. Chemists William Crookes and Claude-Auguste Lamy discovered thallium in…
What is Group 3A used for?
Group 3A elements have many uses, from laundry detergent to the foil lining your baking sheet to rat poison. So, the next time you see a family where everyone acts and looks a little different from one another, remember the 3A group! To unlock this lesson you must be a Study.com Member.
How many valence electrons does Group 3A have?
The electrons that are farthest away from the center of the atom are called valence electrons, and they help determine who the element can bond with and how the element behaves. Group 3A has three valence electrons. Most of the elements in this group lose those three valence electrons and get a +3 charge, otherwise known as a +3 oxidation state.
What is the 3A family on the periodic table?
Meet the 3A family, where they look and act very different from one another. Group 3A includes boron (B), aluminum (Al), gallium (Ga), indium (In), and thallium (Th), and they are located on the middle-right of the periodic table. Groups are the vertical columns on a periodic table that share similar properties.
What is Group 4A on the periodic table?
Group 4A consists of Carbon (C), Silicon (Si), Germanium (Ge), Tin (Sn), and Lead (Pb) and is located on the middle-right of the periodic table. You already know they can be called group 4A, but they can also be referred to as group 14 or group IVA.
What is the family of 3a on the periodic table?
Group 3A elements belong to the boron family, which is a group of elements that occupy the 13th column in the periodic table. The boron family is n...
What is the electronic configuration of Group 3A elements?
The general electronic configuration of group 3A elements is ns2np1. This configuration shows that there are a total of three valence electrons in...
What is the charge of group 3 elements?
All the elements in group 3A are electropositive; they form positively charged ions by giving up their valence electrons. 3A elements have a total...
Group 3A Elements
The Group 3A elements are the chemical elements that belong to group IIIA (3A) on the periodic table. In the modern periodic table, Group 3A or IIIA is simply called Group 13. Group 3A elements belong to the boron family, which is a series of elements that occupy the 13th column on the periodic table.
Properties of Group 3A
Group 3A primarily consists of metal elements, with the exception of boron, which is a metalloid. Metalloids can be thought of as elements with a weak metallic character. They are capable of conducting electric and thermal energy, but not as well as most metals can. Metals are always electropositive.
