Question

consider the four models of the carbon (c), oxygen (o), nitrogen (n), and hydrogen (h) atoms shown above. count the number of unpaired electrons in the outer shells of each of the four atoms. then, drag and drop the correct number of unpaired electrons to match it with the name of each atom.
nitrogen
oxygen
hydrogen
carbon
3 unpaired electrons
1 unpaired electron
2 unpaired electrons
4 unpaired electrons

Explanation:

Step1: Analyze nitrogen atom

Nitrogen has 7 electrons. Its electron - configuration is 1s²2s²2p³. In the outer 2p sub - shell, there are 3 unpaired electrons.

Step2: Analyze oxygen atom

Oxygen has 8 electrons. Its electron - configuration is 1s²2s²2p⁴. In the outer 2p sub - shell, there are 2 unpaired electrons.

Step3: Analyze hydrogen atom

Hydrogen has 1 electron. Its electron - configuration is 1s¹. There is 1 unpaired electron.

Step4: Analyze carbon atom

Carbon has 6 electrons. Its electron - configuration is 1s²2s²2p². In the outer 2p sub - shell, there are 2 unpaired electrons.

Answer:

Nitrogen - 3 unpaired electrons
Oxygen - 2 unpaired electrons
Hydrogen - 1 unpaired electron
Carbon - 2 unpaired electrons