Answer:
To get number of neutrons, you must have the mass number and atomic number of that atom.
atomic number is number of protons
Which compound has atoms sharing 2 electrons? CCl4 N2 Br2 CO2
1 answer:
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Answer:- b. +3
Explanations:- Charge of a metal ion is equal to the number of valence electrons it has as it loses these electrons to have its nearest noble gas like electron configuration.
Al has 3 valence electrons and being a metal it loses all of these and so the charge of Al ion is +3. It could be shown as:
So, the right choice is b. 3+.