As an analog of graphite, a material composed of boron and nitrogen (B-N) has be

Question

As an analog of graphite, a material composed of boron and nitrogen (B-N) has been prepared. Why do these elements make a good substitute for the element in graphite?

I.

They are all elements with electrons in the 2p subshell.

II.

The sum of the valence electrons of one boron atom and one nitrogen atom is the same as the number of valence electrons on two carbon atoms.

III.

Boron and nitrogen have suitable 2p orbital overlap.

I.

They are all elements with electrons in the 2p subshell.

II.

The sum of the valence electrons of one boron atom and one nitrogen atom is the same as the number of valence electrons on two carbon atoms.

III.

Boron and nitrogen have suitable 2p orbital overlap.

Explanation / Answer

This is primarily because of the sum of the valence electrons of one boron atom (3) and one nitrogen atom (5) is the same as the number of valence electrons on two carbon atoms.

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