Atoms, Isotopes, Ions

Front

What is an isotope?

Back

An isotope is an atom of the same element that has a different number of neutrons, resulting in a different mass.

Front

What changes in an ion?

Back

The number of electrons changes in an ion.

Front

What is the charge of an atom when it gains electrons?

Back

The atom has a negative charge when it gains electrons.

Front

What is the atomic number?

Back

The atomic number is equal to the number of protons in an atom.

Front

What is a cation?

Back

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

Front

What is an anion?

Back

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

Front

How do isotopes of an element differ?

Back

Isotopes of an element differ in the number of neutrons they contain.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a charge due to the loss or gain of electrons.

Front

What is a neutral atom?

Back

A neutral atom has an equal number of protons and electrons, resulting in no overall charge.