Question

periodic table
choose the correct terms to complete the sentences.
oxygen-16, oxygen-17, and oxygen-18 are the three isotopes of the element oxygen. an atom of each of these isotopes will have the same number of choose , but a different number of choose .

Explanation:

Isotopes of an element have the same atomic number (number of protons) but different mass numbers (sum of protons and neutrons). So for oxygen isotopes, same number of protons, different number of neutrons.

Answer:

First "Choose" dropdown: protons
Second "Choose" dropdown: neutrons