I think the right answer is 2.5
The absolute value of the difference in electronegativity (ΔEN) of two bonded atoms provides a rough measure of the polarity to be expected in the bond and, thus, the bond type. When the difference is very small or zero, the bond is covalent and nonpolar. When it is large, the bond is polar covalent or ionic.
1: Decomposition reaction
2: Combination reaction
3: product
4: Reactant
Answer:
Hello There!!
Explanation:
I believe the answer is nuclear.
hope this helps,have a great day!!
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