Question

element P has atomic number 19 to which group and period does p belong ? is it a metal or nonmetal? why​

Answer 1

Explanation:

To find period and group we have to firstly optimised it configuration.

p has an an electronic configuration as

k shell l shell m shell

P---- 2 , 8 , 5

here we can see that it has 5 electrons in its last shell.

so, for group we have to add 10 + 5 = 15 group

here we can see thar its electron is filled in 3 shell k, l, m

so, it belongs to 3rd period.

also ,it is non metal