What element has the symbol O?
Oxygen
This alkaline earth metal has the symbol Mg.
Magnesium
This noble gas is used in balloons.
Helium
This halogen is added to toothpaste to prevent cavities.
Fluorine
This alkali metal has the symbol Li.
Lithium
What element has the symbol Na?
Sodium
This alkaline earth metal is found in bones and teeth.
Calcium
This noble gas makes bright advertising signs glow red.
Neon
This halogen is commonly found in table salt.
Chlorine
This alkali metal reacts violently with water and has the symbol Na.
Sodium
What element has the symbol Fe?
Iron
This alkaline earth metal has the symbol Be.
Beryllium
This noble gas has the symbol Ar.
Argon
This halogen is a reddish-brown liquid at room temperature.
Bromine
This alkali metal has the symbol K.
Potassium
What element has the symbol K?
Potassium
This alkaline earth metal has the symbol Sr.
Strontium
This noble gas has the symbol Kr.
Krypton
This halogen has the symbol I.
Iodine
This alkali metal has the symbol Cs.
Cesium
What element has the symbol Pb?
Lead
This is the heaviest alkaline earth metal.
Radium
This noble gas has the symbol Xe.
Xenon
This is the most reactive halogen.
Fluorine
This is the most reactive alkali metal.
Francium