1 Answer

Yacoby · Answer 1 · 2021-03-30T05:02:29+0000

The atomic mass of manganese atom : 55

Given

Manganese (Mn) atom has 30 neutrons

atomic number 25

Required

the atomic mass

Solution

The atomic mass=number of protons+number of neutrons

The atomic number = number of protons=number of electrons

The number of protons=25, so the atomic mass :

$\tt =ptotons+neutrons\\\\=25+30\\\\=55$

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