How many valence electrons do Alkaline Earth Metals have?

• 1

• 2

• 3

• 7

Which metal is NOT an Alkaline Earth Metal?

• Calcium

• Radon

• Strontium

• Radium

Alkaline Earth Metals are very dense

• True

• False

Alkaline Earth Metals are fairly reactive metals because they only have 2 valence electrons and a full shell underneath

• True

• False

Alkaline Earth metals conduct heat and electricity

• True

• False

What do the elements highlighted in red have in common?

• The same number of protons

• The same number of neutrons

• They are in the same group

• They are in period 2

______ was once thought of as a miracle metal because it gave off heat and light, but nowadays we know that it is radioactive and can cause cancer.

Tags

NGSS.HS-PS1-8

Which two alkaline earth metals are essential to life?

• Calcium

• Magnesium

• Barium

• Strontium

Strontium

Which fact is incorrect?

• burns red

• used in road flares

• toxic at high levels

• small amounts of it are used in handcream

Tags

NGSS.HS-PS1-1

Which facts apply to Barium?

• used in glassmaking

• gives fireworks a green color

• used in x-rays

• gives gemstones a green color