Question

Match the following pairs with their nature.

• A. Isotones
• B. Isotopes
• C. Isobars

Answer 1

Isotopes: Isotopes are elements with the same atomic number but different mass numbers.

${}_6^{12}Can{d}_6^{13}C$- These elements have the same number of protons=6

Isobars: Isobars are elements with the same mass number but different atomic numbers.

${}_{19}^{40}Kand{}_{19}^{40}Ar$- These elements have the same number of neutrons and protons which accounts for the mass number(40)

Isotones: Isotones are elements with the same number of neutrons but different numbers of protons.

${}_9^{19}Fand{}_{10}^{20}Ne$ - These elements have the same number of neutrons (10)