Neutral Atoms, Ions, and Isotopes

Front

What is a neutral atom?

Back

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

Front

What are the charges of protons, electrons, and neutrons?

Back

Protons have a positive charge (p+), electrons have a negative charge (e-), and neutrons have no charge (n).

Front

How many valence electrons does a Sulfur atom have?

Back

Sulfur has 6 valence electrons.

Front

What is an isotope?

Back

An isotope is a variant of an element that has the same number of protons but a different number of neutrons.

Front

What is a positive ion?

Back

A positive ion is an atom that has lost one or more electrons, resulting in a net positive charge.

Front

What is a negative ion?

Back

A negative ion is an atom that has gained one or more electrons, resulting in a net negative charge.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the mass number of an atom?

Back

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

Front

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

Back

Subtract the atomic number from the mass number.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an atom can bond with other atoms.