Answer:
5 valence electron
Explanation:
It is because the group number is equal to the valence electron.
Nickel carbonyl (IUPAC name: tetracarbonylnickel) is the organonickel compound
I say C because why would you want a plant to resist something that helps it grow? A, B, and D make sense because those can improve the quality of the plant, but fertilizer can improve plant quality and help it grow. So there is no reason to resist it.
Chemical- it produces ammonia.
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➷ This would be an electron.
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➶ Hope This Helps You!
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