Question

what is the group and period of 1s^2 , 2s^2 , 2p^5 of this electronic configuration​

Answer 1

Answer:

Group 17

Period 2

Explanation:

first calculate the number of electrons, it has,

2+2+5 which is equal to 9

now, check 9 atomic number element. Fluorine has atomic number of 9.

where F is located in the periodic table?

it is at the 17th group and 2nd period, so, answer will be,

Group 17 and Period 2