Question

which quantity determines how two atoms bond? (1 point)
o the difference in their electronegativities
o the sum of their electronegativities
o the difference in the number of valence electrons
o their total number of valence electrons

Explanation:

Electronegativity difference determines bond type. If difference is small (≤ 0.4), it's non - polar covalent. If between 0.5 - 1.7, polar covalent. If ≥ 1.7, ionic. Sum of electronegativities isn't relevant. Valence electron number difference or total doesn't directly determine bond type like electronegativity difference.

Answer:

the difference in their electronegativities