Test: Atomic Structure(Master)

Front

What is the name of the type of ion when electrons are lost?

Back

Cation

Front

Which scientist discovered that atoms are made up of mostly empty space?

Back

Rutherford

Front

How does gallium form a 3+ ion?

Back

The gallium loses 3 electrons.

Front

What is the atomic mass of Hydrogen?

Back

1.008

Front

In what units is the mass of a single atom measured?

Back

Atomic mass units.

Front

What is an anion?

Back

An ion that has gained one or more electrons, resulting in a negative charge.

Front

What is the charge of a cation?

Back

Positive charge.

Front

Who proposed the atomic theory that matter is made of indivisible particles?

Back

Dalton.

Front

What is the significance of atomic mass units (amu)?

Back

It is a standard unit of mass that quantifies mass on an atomic or molecular scale.

Front

What is the difference between an isotope and an ion?

Back

An isotope has the same number of protons but a different number of neutrons; an ion has a different number of electrons.