Question

What element’s valence electrons are located in 4s24p3?

Answer 1

As - Arsenic! Go down four through the s through d and stop in column p^3

Answer 2

Answer : The element is Arsenic (As).

Explanation :

The given electronic configuration is
`4s^24p^3` which means the lower shells are fully-filled.

Now the complete electronic configuration is,

`1s^22s^22p^63s^23p^63d^(10)4s^24p^3`

The total number of electrons = 2 + 2 + 6 + 2 + 6 + 10 + 2 + 3 = 33

From the periodic table, we conclude that the Arsenic is the element which have 33 number of electrons.