Question

Write the symbol, electronic configuration for element with atomic number 15. Suggest the

period and group to which it belongs.
​

Answer 1

The electronic configuration of first 30 elements with atomic numbers listed above corresponds to the ground state of the specific elements.

...

Electronic Configuration of First 30 Elements with Atomic Numbers.

Atomic Number Name of the Element Electronic Configuration

9 Fluorine (F) [He] 2s2 2p5

10 Neon (Ne) [He] 2s2 2p6

11 Sodium (Na) [Ne] 3s1

12 Magnesium (Mg)