Wallace Mid-term study guide

Front

What type of change is burning?

Back

Chemical change.

Front

What is the mass number of an atom equal to?

Back

The number of neutrons plus protons.

Front

If an element has 28 innermost electrons and 7 outermost electrons, in which period of the Periodic Table is it located?

Back

Period 4.

Front

What do elements that readily gain electrons tend to have?

Back

High ionization energy and high electronegativity.

Front

What is the amount of energy required to remove the most loosely bound electron from an atom in the gaseous phase called?

Back

Ionization energy.

Front

Define ionization energy.

Back

The energy required to remove an electron from an atom.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the difference between intensive and extensive properties?

Back

Intensive properties do not depend on the amount of substance, while extensive properties do.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.