Question

12. Atomic numbers of elements A, B, C, D, E, F are 8, 7, 11,
12, 13 and 9 respectively. State the type of ions they form.​

Answer 1

Answer:

anion

Explanation:

as they all have native charges

Answer 2

Answer:

Moving down in a group decreases the ionisation energy and increases the size while moving right along a period increases the ionisation energy and decreases the size.

As elements A,B,C belongs to 2

nd

period and C is on the right-hand side. D belongs to 3

rd

period.

Hence element C is the element with the smallest size and high ionisation energy.