Question

Which of the following statements is true about isotopes of the same element? Click on all that apply (1 point)

Isotopes have the same number of protons
Isotopes have the same number of electrons
Isotopes have the same number of neutrons
Isotopes have the same atomic mass
Isotopes have the same atomic number

Answer 1

isotopes have the same number of protons

Answer 2

Answer : The correct options are,

Isotopes have the same number of protons.

Isotopes have the same number of electrons.

Isotopes have the same atomic number.

Explanation :

Isotope : It is defined as the element that have the same number of protons but have the different number of neutrons of each of the atom.

Atomic number is defined as the number of protons or number of electrons.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and number of neutrons.

Number of neutrons = Mass number - Number of protons

For example :

Carbon - 13:

Mass number = 13

Atomic number = 6

Number of protons = Number of electrons = 6

Number of neutrons = 13 - 6 = 7

Carbon - 12:

Mass number = 12

Atomic number = 6

Number of protons = Number of electrons = 6

Number of neutrons = 12 - 6 = 6