An atom has a mass number of 30 and 16 neutrons. what is the atomic number of this atom?

The atomic number of an atom is 14.

Explanation:

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

We are given:

Number of neutrons = 16

Mass number = 30

Number of protons = Atomic number = Mass number - Number of neutrons = 30 - 16 = 14

Hence, the atomic number of an atom is 14.

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong