43g id say. Due to conservation of mass that is the only one that makes even slight sense. If you had more air react then the nail would heavier
Valence electrons are located on the outermost energy level and determine how reactive an atom will be
Answer:
c
Explanation:
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For a neutral atom, the number of positive protons is equal to the number of negative electrons and the charge is zero.
For this question, we see that the number of protons exceeds the number of electrons by 2, which means that this ion in a positively charged charged ion with charge of +2.