Periodic table

Front

What are halogens?

Back

Halogens are a group of elements in Group 17 of the periodic table, known for their high reactivity and tendency to form salts with metals.

Front

Why are halogens so reactive?

Back

Halogens are reactive because they only need one more electron to achieve a full outer shell, making them eager to bond with other elements.

Front

What is the position of Arsenic in the periodic table?

Back

Arsenic is located in period 4 and group 5A of the periodic table.

Front

What category does Silicon (Si) belong to?

Back

Silicon (Si) is classified as a metalloid, which has properties of both metals and nonmetals.

Front

What group is Lead (Pb) in?

Back

Lead (Pb) is in group 4A of the periodic table.

Front

What group is Mercury (Hg) in?

Back

Mercury (Hg) is in group 2B of the periodic table.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are the main categories of elements in the periodic table?

Back

The main categories are metals, nonmetals, and metalloids.

Front

What is a valence electron?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How do you determine the group of an element in the periodic table?

Back

The group of an element is determined by the number of valence electrons it has.