P.S. Chem Exam Review

Front

How many valence electrons does group 17 have?

Back

7

Front

The qualities of being malleable and conducting electricity are true of...

Back

Metals

Front

Atoms are considered stable when they have

Back

full outer energy level

Front

Where does the substance exist as a solid only?

Back

A-B

Front

What is the balanced chemical equation for S + O2 --> SO3?

Back

2 S + 3 O2 → 2 SO3

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

Define malleability.

Back

The ability of a substance to be deformed or shaped under pressure without breaking.

Front

What is a chemical equation?

Back

A symbolic representation of a chemical reaction showing the reactants and products.

Front

What is the significance of a full outer energy level?

Back

Atoms with a full outer energy level are generally more stable and less reactive.

Front

What are nonmetals?

Back

Elements that are typically poor conductors of heat and electricity and have high ionization energies.