Unit 3 Pre-Assessment

Front

What does the symbol 'C' represent in chemistry?

Back

Chemical symbol.

Front

What charge does the nucleus of an atom have?

Back

Positive.

Front

Where are valence electrons found in an atom?

Back

In the outermost energy levels of an atom.

Front

What is a negatively charged particle located outside the atom's nucleus?

Back

An electron.

Front

What happens to electrons during the formation of an ionic bond?

Back

Electrons are transferred.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an ionic bond and a covalent bond?

Back

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

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What is the role of protons in an atom?

Back

Protons determine the atomic number and identity of an element.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.