*Mass numbers, and neutron numbers for Na, Al, Fe.?

1. Mass numbers, and neutron numbers for Na, Al, Fe.

2. orbital notation, electron configuration, and lewis dot structure for Calcium, Arsenic, Fluoride(f1-), and Mg2+.

3. aluminum reacts with sulfuric acid, which is the automobile batteries. if 20.0 grams of Al is placed into a solution containing 115 grams of H2SO4, how many grams of hydrogen gas could be produced?

Answer:
Na has 11 protons, 12 neutrons, and a mass of 23.

One answer per question.
carbon 13 is an external isotope of carbon 12.carbon 12 does share at p orbital similar orbits as the external 13

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