Question

Consider the elements neon, bromine, and phosphorus. Which has five electrons in its 4p sublevel?


I got phosphorus wrong as my answer....

Answer 1

Phosphorus has three electrons in its 3p sublevel

Answer 2

so it would be Bromine?

Answer 3

Only bromine. You have to write electron configuration:
[Br]:1s^22s^22p^63s^23p^63d^{10}4s^24p^5

Answer 4

Thank you :)