Periodic Table Review

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What is an atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is atomic mass?

Back

The weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What are metals?

Back

Elements that are typically shiny, good conductors of heat and electricity, and malleable.

Front

What are nonmetals?

Back

Elements that are generally poor conductors of heat and electricity, and can be gases, liquids, or brittle solids.

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals, often used as semiconductors.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does Sodium (Na) have?

Back

1 valence electron.

Front

What is a chemical symbol?

Back

A one or two-letter abbreviation used to represent an element on the periodic table.

Front

What is a group in the periodic table?

Back

A vertical column of elements that share similar chemical properties.