Question

the atom of an element has 25 electrons and 30 neutron write down its atomic number and mass number.​

Answer 1

mn-manganese

at no -25

mass no - 55

Answer 2

Answer:

At no- 30

At mass- 55

Explanation:

At no= no. of Neutron

At mass = no. of neutron.+ no of proton.

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