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Here are answers to Question for Bozeman Bond Length and Bond Energy video.
1) Coloumbic Forces (CF):
Attractive : Shared valence electrons to each nuclei of both bonding atoms
Repulsive CF: between valence electrons of atoms
2) Electronegative (and of course CF).
3) Energy is released (-ΔH) when bond are formed.
4) Energy is needed (+ΔH) when you are "breaking" bonds.
5) TB > DB > SB
6) TB > DB > SB
7) Relative strength of the two bonding atom's Coloumbic forces (CF).
Electronegative differences (+ΔEN).