Question

1. choose the best answer.

the name of this isotope is_____
243 - americium
241 - americium
americium - 241
americium - 95

Explanation:

The naming convention for isotopes is "element name - mass number". Americium (\(Am\)) has an atomic number of \(95\), but the mass number is used in the isotope name. Among the options, "americium - 241" follows the correct naming format.

Answer:

americium - 241