Basic chemistry

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

How many protons does an oxygen atom have?

Back

An oxygen atom has 8 protons.

Front

What is the charge of a neutral atom?

Back

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

Front

What is the smallest unit of matter that retains the properties of an element?

Back

An atom is the smallest 'building block' of the elements that make up the universe.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What defines an element?

Back

An element is defined by its atomic number, which is the number of protons in its nucleus.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What do ionic and covalent bonds have in common?

Back

Both ionic and covalent bonds fill outer electron shells.

Front

How many electrons does a carbon atom with 6 protons have if it is neutral?

Back

A neutral carbon atom with 6 protons has 6 electrons.

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom that has no charge.