Work done after rutherford's gold foil experiment demonstrated that the nucleus contained ________.
1 answer:
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Answer : The mass of required is 18.238 grams.
Explanation : Given,
Mass of = 83.10 g
Molar mass of = 146 g/mole
Molar mass of = 256.52 g/mole
The balanced chemical reaction is,
First we have to determine the moles of .
Now we have to determine the moles of .
From the balanced chemical reaction we conclude that,
As, 8 moles of produced from 1 mole of
So, 0.569 moles of produced from
mole of
Now we have to determine the mass of .
Therefore, the mass of required is 18.238 grams.
It depends on the number of valence electrons required to make octet or duplet( in case of H). For example, Nitrogen(atomic number = 7) has electronic configuration(2,5) which means nitrogen has 5 valence electrons and requires 3 more electrons to complete its octet. After gaining 3 electrons from atoms of an element with less electronegativity than N, it forms nitride ion (
). Hope this helps.