Isotopes

Question 1

Describe isotopes as different atoms of the same element containing the same number of protons but different numbers of neutrons in their nucleus

Answer 1

They share almost the same chemical properties, but differ in mass and therefore in physical properties

Question 2

How to Calculate the numbers of protons, in atoms given the atomic number and mass number

Answer 2

The number of protons in the nucleus of the atom is equal to the atomic number (Z).

Question 3

How to Calculate the numbers of neutrons, in atoms given the atomic number and mass number

Answer 3

number of neutrons = mass number - atomic number.

Question 4

How to Calculate the numbers of electrons, in atoms given the atomic number and mass number

Answer 4

number of electrons = atomic number.

Question 5

Explain how the existence of isotopes results in relative atomic masses of some elements not being whole numbers

Answer 5

It takes account of the abundance. of each of the isotopes of the element.