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Andreyy89
2 years ago
9

The atoms of Group B elements _____ electrons when they form ions. options: A.either gain or lose B.gain C.cannot be determined

D.lose
Chemistry
2 answers:
grigory [225]2 years ago
6 0

The answer to the question :

The atoms of Group B elements _____ electrons when they form ions .

is :

D) lose

The atoms of Group B elements lose electrons when they form ions because these elements are metals.

Harrizon [31]2 years ago
6 0
They tend to lose electrons to became positive ions( cation ) .
Hope it help :)
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A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. how much calcium is contained in 45.0 g of c
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In a sample of pure calcium fluoride of mass 15.0 g, 7.70 g of calcium is present. First convert the mass into number of moles as follows:

n=\frac{m}{M}

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n=\frac{7.70 g}{40 g/mol}=0.1925 mol

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Thus, 0.1921 mol of CaF_{2} have 0.1925 mol of Ca, or 1 mole of CaF_{2} will have approximately 1 mole of Ca.

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3 years ago
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Hope this helps :)

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