Question

What term is used to describe ${}_{14}\mathrm{Si}^{28}$and ${}_{14}\mathrm{Si}^{29}$?

Answer 1

Isotopes:

• "Atoms with identical atomic numbers but different mass numbers are known as Isotopes''.
• For example, ${}_6\mathrm{C}^{12}$, ${}_6\mathrm{C}^{13}$ and ${}_6\mathrm{C}^{14}$.

${}_{14}\mathrm{Si}^{28}$and ${}_{14}\mathrm{Si}^{29}$:

• In the given atoms, the atomic number is the same, i.e., $14$ but the mass numbers are different, i.e., $28$ and $29$.
• Therefore, the given atoms are isotopes.