Question

The electron configuration for phosphorous (atomic number = 15) has electrons in the 3p orbital. Choose the correct statement from those that follow: 1. All three electrons in the 3p orbital of this atom are paired.
2. Two of the three electrons in the 3p orbital of this atom are paired and one is unpaired.


3.All of the electrons in the 3p orbital of this atom are unpaired.


4.The 3p orbital of this atom is filled completely with electrons.



Electrons at the bottom of an Aufbau digram have more energy than those at the top.

Question 2 options:
True
False

Electrons in a "4s" orbital are higher energy than those in a "2s" orbital.

Question 3 options:
True
False

What is the highest energy orbital occupied by electrons in the configuration for magnesium (atomic number = 12)? (Hint: You must write the electron configuration in order to correctly answer this question!)

Question 4 options:

1s


2s


3s


4s


What is the lowest energy orbital occupied by electrons in the configuration of phosphorous (atomic number = 15)? (Hint: You shouldn't really need to write out the configuration to correctly answer this question!)

Question 5 options:

1s


2s


3s


3p

Answer 1

Maybe next time post just one problem at a time...

Answer 2

For starters, how many electrons will a neutral atom of P have?