Chemistry Review

Front

What is the most likely action of an atom of iodine with 7 valence electrons to achieve stability?

Back

Gain 1 electron.

Front

What type of ions do metals form when they lose electrons?

Back

Positive ions.

Front

What charge does a proton have?

Back

Positive.

Front

What happens to atoms that gain electrons?

Back

They become negatively charged.

Front

If an aluminum atom has 13 protons and 10 electrons, what is its charge?

Back

Al³⁺.

Front

What is the definition of valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is an anion?

Back

An anion is a negatively charged ion that has gained one or more electrons.

Front

What is a cation?

Back

A cation is a positively charged ion that has lost one or more electrons.

Front

What is the charge of a neutron?

Back

A neutron has no 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.