Which of the following pairs of 'number – composition' is correct?
I. Atomic number – number of protons
II. Mass number – Sum of the number of neutrons and protons
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Q:
Which of the following pairs of 'number – composition' is correct?
I. Atomic number – number of protons
II. Mass number – Sum of the number of neutrons and protons
- 1Only Ifalse
- 2Neither I nor IIfalse
- 3Both I and IItrue
- 4Only IIfalse
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