The mass number of an element that has 30 protons, 35 neutrons and 30 electrons will be 65.
The mass number of any particular atom is symbolized by the letter "A," and it is determined mostly by the sum of the protons as well as neutrons.
Each atom's nucleus contains a proton, the subatomic particle. The particle possesses electric charges which are positive as well as reverse to the electrons.
Calculation of mass number
It is given that
Number of protons = 30
Number of neutrons = 35
Number of electrons = 30
Mass number can be calculated by using the formula:
Mass number = mass of protons +mass of neutrons
Mass number = 30 + 35
Mass number = 65
Therefore, the mass number will be 65.
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