The sum of the number of neutrons and proton in the isotopes of hydrogen is:
A
6
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B
5
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C
4
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D
3
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Solution
The correct option is A6
Number of protons
Number of neutrons
Hydrogen
1
0
Deuterium
1
1
Tritium
1
2
Hydrogen has three isotopes. The sum of the number of protons is 1+1+1+=3 The sum of the number of neutrons is 0+1+2=3 The sum of the number of neutrons and proton in the isotope of hydrogen is 3+3=6