How many protons electrons and neutrons does an atom with an atomic number of 50 and a mass number 120 contain?

Answer 1

The atomic number 50 corresponds to the element tin, or Sn.

The atomic number tells you the number of protons, which is 50 protons.

The mass number is equal to the number of protons + the number of neutrons.

So 55 - 50 = 5 neutrons

And a neutral atom has exactly the same number of protons as electrons, so it has 50 electrons.

Answer 2

Because no charge is specified, the atom must be electrically neutral; this means it must have the same number of electrons as of protons. The mass number is defined as the sum of the numbers of protons and neutrons, and the atomic number is defined as the number of protons. Therefore, the specified atom has 50 protons, 50 electrons, and (125 - 50) or 75 neutrons.

Answer 3

This question can not be properly answered unless a specific isotope of the element is specified. The number of neutrons is always equal to the mass number of the isotope minus the atomic number of the element.

Answer 4

The atomic number tells you the number of protons in an atom, which in this case is 50. Assuming the charge of the atom is 0, the number of electrons is the same as the number of protons, so in this case there are 50 electrons. The number of neutrons is the atomic number subtracted from the Atomic Mass. Therefore, the number of neutrons is 125 - 50 = 75.

Answer 5

50P, 50E, and 75N
Protons = 50

Electrons in Ground State = 50

Neutrons = 125-50 = 75

Answer 6

27 protons

28 neutrons

27 electrons

Answer 7

that is impossible to tell because u would have to know at least one of those to figure out the other 2...

Answer 8

Atomic number is 50.so proton and electron will also be 50. And mass number is 120. So neutron is 120-50=70.