Periodic table basics

These shaded elements are

• metals

• nonmetals

• metalloids

These shaded elements are

• metals

• nonmetals

• metalloids

These shaded elements are

• metals

• nonmetals

• metalloids

Each column in the periodic table is called a 

• period

• group

• cluster

• unit

The atomic number tells you what?

• number of electrons

• number of protons

• number of neutrons

• both electrons and protons in an atom.

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

A horizontal row of elements in the periodic table.

• column

• group

• period

Elements in a ..................have similar chemical properties.  

• period

• group

• row

• Metals

• Nonmetals

• Metalloids

In the modern periodic table elements are arranged by:

• atomic mass

• atomic number

• valence electrons

• number of isotopes