What does the group number on the periodic table explain?

Answer 1

The atomic number tells us the number of electrons and the number of protons., i.e. Atomic Number = Number of electrons = Number of Protons. The Atomic Mass tells the total number of particles in the nucleus, i.e. Atomic Mass = # of protons + number of neutrons. The Group number is the heading at the top of a column in the table. It tells the the outer electron configuration of the atom. This determines many chemical properties of the element.

Answer 2

The group number on the Periodic Table indicates the number of valence electrons an element has. Elements in the same group have similar chemical properties because they have the same number of valence electrons, leading to similar reactivity and bonding characteristics.

Answer 3

They represent the 'Family' i.e.: nitrogen family: group 15

Answer 4

Group number represents the group or the family in which the element is present. Based on the group number, the relative reactivity of the element can be known.

Answer 5

Group in a periodic table plays major significance.Groups contain elements with similar characteristic properties.There are 18 groups in periodic table.