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The mass number of a nucleus is

(a)Sometimes less than and sometimes more than its atomic number

(b)Always less than its atomic number

(c)Always more than its atomic number

(d)Sometimes equal to its atomic number

Navjyot Kalra , 12 Years ago
Grade 10
anser 1 Answers
Aditi Chauhan

(d)

In case of hydrogen atom, Mass number = atomic number

Last Activity: 12 Years ago
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