Question

The element nickel has five naturally occurring isotopes. Which of the following describes the relationship of these isotopes?

Answer 1

Answer:

Different mass, same atomic number

Explanation:

• Elements are made of similar atoms, however the atoms may have different number of neutrons but the same number of protons in their nucleus.
• Such atoms that have equal number of protons but different number of neutrons are known as isotopes.
• Difference in the number of neutrons makes isotopes to have different mass numbers.
• Atomic number is the number of protons in the nucleus of an atom, therefore, isotopes have the same atomic number.