WILL FAN AND MEDAL

What is the position of an element in the periodic table if its electron configuration is 1s^2 2s^2 2p^6 3s^2 3p^5 ?

In the group 5A element

In the group 6A element

In the group 3A element

In the group 7A element

Question

WILL FAN AND MEDAL

What is the position of an element in the periodic table if its electron configuration is 1s^2   2s^2   2p^6  3s^2   3p^5  ?

In the group 5A element

In the group 6A element

In the group 3A element

In the group 7A element

rushwr · Answer

This has 5 electrons in the outermost orbitals right?  So it would be an element from 5A group !

anonymous · Answer

NO,it has 7 electrons in the outermost orbitals since electrons from both 3s and 3p are calculated .So it is definetely a 7A element!

More..
-it has electrons on K L and M so the period is 3
-it has 7 electrons on M (outermost ) so it's on the 17th or 7A group :)
-it's Cl