Question

H) Match the atomic numbers 8 , 10, 13, 15 and 19 with each of the following: 5m

1. Element which can form trivalent ion.

2. Element which is present in a Boron family.

3. An element with 4 shells.

4. Element with 6 valency electrons.

5. Element which does not form ion.

Sec​

Answer 1

Answer:

Atomic number 15

Electronic configuration (15):2,8,5