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lawyer [7]
2 years ago
7

How do i find the atomic mass and number ?

Chemistry
1 answer:
grin007 [14]2 years ago
3 0

To get the atomic mass you need to combine the neutrons and protons together, and the atomic number is the number of protons in an atom!

Hope this helps if not comment below please!!!

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Answer: One formula unit of NaCl consists of one cation, whose chemical symbol is Na^+ and one anion whose chemical symbol is Cl^-

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For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

The cation is formed by the metal sodium which forms  Na^+ and the anion is formed by non metal chlorine which forms Cl^-.

For a formula unit of sodium chloride,  the charges have to be balanced , thus the valencies of ions are exchanged and the neutral compound result. Thus

Na^+ and  Cl^- combine to form neutral NaCl

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