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9 grade science

The number of neutrons in the dispositive zinc ion is: (mass number of Zn=65) A) 35 B) 33 C) 65 D) 67

Profile image of Aniket Singh
1 Year agoGrade
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1 Answer

Profile image of Askiitians Tutor Team
1 Year ago

The number of neutrons in an atom or ion can be calculated using the formula:

Number of neutrons = Mass number - Atomic number

The atomic number (number of protons) for an element is its identifying number on the periodic table. For zinc (Zn), the atomic number is 30.

Given that the mass number of the zinc ion is 65, we can calculate the number of neutrons:

Number of neutrons = 65 (mass number) - 30 (atomic number) = 35

So, the correct answer is:

A) 35