Ions and Isotopes Assessment Remediation

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the charge of an ion formed by an atom from Group 16 of the periodic table?

Back

-2

Front

What is the mass number of an isotope?

Back

The mass number of an isotope is the total number of protons and neutrons in its nucleus.

Front

What is the mass number of Carbon-14?

Back

14

Front

Which subatomic particle determines if an atom is a different isotope?

Back

Neutron

Front

What is an anion?

Back

An anion is a negatively charged ion, formed when an atom gains one or more electrons.

Front

Which of the following ions is an anion? Mg^{2+}, Al^{3+}, S^{2-}, K^{+}

Back

S^{2-} is an anion.

Front

What is the definition of an isotope?

Back

Isotopes are atoms with the same number of protons but different numbers of neutrons.

Front

What is the charge of a cation?

Back

A cation is a positively charged ion, formed when an atom loses one or more electrons.

Front

How do you determine the number of neutrons in an isotope?

Back

Subtract the number of protons (atomic number) from the mass number.