Question

Using the periodic table, determine the ion charges of the following families of elements if valence electrons were removed or added to reach the octet. Group I = Group VI = Group III =

Answer 1

Group I=1+

Group VI=-2

Group III=3+

Answer 2

Answer: The ion charge formed by Group I will be +1, by Group VI will be -2 and by Group III will be +3.

Explanation:

Ions are formed when electrons are lost or gained by an atom. When an atom looses electrons, it forms a positive ion known as cations and when an atom gains electrons, it forms a negative ion known as anions.

The electronic configuration of the elements present in

• Group I: $ns^1$ where n is the number of period

This configuration will loose 1 electron and thus will form an ion of +1.

• Group VI: $ns^2np^4$ where n is the number of period

This configuration will gain 2 electrons and thus will form an ion of -2.

• Group III: $ns^2np^1$ where n is the number of period

This configuration will loose 3 electrons and thus will form an ion of +3.

Hence, the ion charge formed by Group I will be +1, by Group VI will be -2 and by Group III will be +3.