Periodic Table

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

The atomic number always 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

Tags

NGSS.HS-PS1-1

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

Which element is not a metal?

• Hg

• Re

• Al

• B

Which is a halogen?

• Helium
• Chlorine
• Oxygen
• Neptune

Tags

NGSS.HS-PS1-1

Which is an alkali metal?

• Magnesium
• Iron
• Sodium
• Europium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A horizontal row of elements in the periodic table.

• column
• group
• period

A vertical column in the periodic table.  Elements share similar properties.

• row
• group
• period

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

• period
• group
• row