MIDTERM: Review

Front

How many electrons are needed in the outer energy levels of an atom to be stable?

Back

8

Front

What are the starting materials in a chemical reaction called?

Back

Reactants

Front

What material can stop alpha radiation?

Back

Paper

Front

What determines how ionic bonds will form?

Back

Number of valence electrons

Front

What are the subatomic particles found on the outermost shell responsible for the atom's reactivity?

Back

Valence electrons

Front

What is the term for a chemical reaction that absorbs energy?

Back

Endothermic reaction

Front

What is the term for a chemical reaction that releases energy?

Back

Exothermic reaction

Front

What is the law that states that mass is neither created nor destroyed in a chemical reaction?

Back

Law of Conservation of Mass

Front

What type of bond is formed when electrons are shared between atoms?

Back

Covalent bond

Front

What is the term for the number of protons in the nucleus of an atom?

Back

Atomic number