Question

what is this sodium atom known as?
a. isomer
b. isotope
c. anion
d. ion

Explanation:

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons. In this case, the sodium atom (Na) loses an outer electron, resulting in a positively - charged sodium ion (\(Na^{+}\)).

• An isomer is a compound with the same molecular formula but a different structural arrangement (not related to electron loss here).
• An isotope is an atom of the same element with a different number of neutrons (not about electron loss).
• An anion is a negatively - charged ion (sodium here is positively charged).

Answer:

D. Ion