3. Write about the electronic configuration of 1st, 2nd and 3rd period

1.	3. Write about the electronic configuration of 1st, 2nd and 3rd period.
Answer» Answer: from 1st to 3RD period, the ELECTRONS, electrons effinety, size, ATOMIC no., atomic mass increass

3. Write about the electronic configuration of 1st, 2nd and 3rd period.

Answer»

Answer:

from 1st to 3RD period, the ELECTRONS, electrons effinety, size, ATOMIC no., atomic mass increass