Explanation:
WE A është ai Në The H Përshëndetje Nme është
Answer:
about 0.9 mol
Explanation:
there are 22.990 g/mol of Na
20.7/22.99 = 0.900391 mol
about 0.9 mol
It has a negative charge emits energy when it moves to a lower energy orbit from an excited state and it has the same mass as a proton
Answer:
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