Introduction to the Periodic Table

Front

Positively charged particle found in the nucleus of an atom

Back

Proton

Front

The number of electrons found in the last energy level

Back

Valence electrons

Front

There are ---- groups/families on the periodic table.

Back

18

Front

Negatively charged particle located outside of the nucleus

Back

Electron

Front

Most of the periodic table is made of

Back

Metals

Front

The center of an atom, containing protons and neutrons

Back

Nucleus

Front

Elements in the same group have similar properties and the same number of valence electrons

Back

Group/Families

Front

The horizontal rows in the periodic table are called

Back

Periods

Front

Elements that have properties of both metals and non-metals

Back

Metalloids

Front

The smallest unit of an element that retains the properties of that element

Back

Atom