Question

Use the periodic to fill in the numbers in the electron configurations shown below. Na: 1822sC2pP3sE

C =
D =
E =

Answer 1

Values of the electron configuration of Na:

C=2

D=6

E=1

Further explanation

Given

The electron configuration of Na

Required

Fill the number in the electron configuration

Solution

Sodium with the symbol Na is an alkaline metal located in group 1 and has the atomic number 11.

Electron configuration is based on the number of electrons.

Because the atomic number of Na is 11, the number of protons = the number of electrons for the element Na is 11

So the electron configuration is:

1s² 2s²2p⁶3s¹