Science, asked by veersiyam8, 8 months ago

An atom of elements X contains 3protons ,3 electrons, 4 neutrons ... what is the mass number

Answers

Answered by NikhilKumar1806

1

Answer:

mass number of element is 7

Answered by khushi40128

2

Answer:

7 is the mass number

Explanation:

Mass number =Neutron + Atomic number

Mass number= 4 + 3

atomic no. =Proton

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