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steposvetlana [31]
3 years ago
5

Which of the following isotopes is radioactive A)C-12 B)Pb-206 C) Tc-99 D)Ne-20

Chemistry
1 answer:
Gre4nikov [31]3 years ago
4 0
C) Tc-99 is a radioactive isotope also known as radioisoptope. 
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It gives the number of protons in the nucleus of each atom of that element.

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What is the mass of phosphorus that contains twice the number of atoms found in 14
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15.5 gm

Explanation:

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so

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construct the lewis structure of oo . draw the structure by placing atoms on the grid and connecting them with bonds. include al
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<h3>What is the Lewis structure of O ?</h3>

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brainly.com/question/1525249

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