Question #822dc

1 Answer
Sep 6, 2016

Answer:

The answer is (B) #2# electrons.

Explanation:

Carbon, #"C"#, has an atomic number equal to #6#, which of course means that a neutral carbon atom has a total of #6# electrons surrounding its nucleus.

Now, these electrons are distributed on two energy levels

  • the first energy level holds two electrons
  • the second energy level holds four electrons

Now, the first energy level contains one orbital, the #1s# orbital. The second energy level contains a total of four orbitals

  • one s-orbital, the #2s# orbital, located in the #2s# subshell
  • three p-orbitals, the #2p_x#, #2p_y#, and #2p_z# orbitals, lcoated in the #2p# subshell

As you know, an orbital can hold a maximum of two electrons. This means that if you distribute carbon's #6# electrons according to th Aufbau Principle, you will get

#1s^2 -># two electrons occupy the #1s# orbital

#2s^2 -># two electrons occupy the #2s# orbital

#2p^2 -># two electrons occupy the #2p_x# and #2p_z# orbitals

Therefore, you can say that carbon has two electrons in its #2p# subshell.

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