Alkali metals
This alkali metal has the symbol Na.
What is sodium?
This element has the symbol Mg.
What is magnesium?
This metalloid is the first element in this group.
What is boron?
This halogen is added to toothpaste.
What is fluorine?
This noble gas is used in balloons.
What is helium?
Alkali metals have this many valence electrons.
What is 1?
These metals are harder and less reactive than alkali metals.
What are alkaline earth metals?
This metal from this group is used in soda cans.
What is aluminum?
This halogen is used in pools.
What is chlorine?
This noble gas is used in bright advertising signs.
What is neon?
This alkali metal is in Period 4.
What is potassium?
This element is important for bones and teeth.
What is calcium?
This element in the boron group is a soft metal that can melt in your hand.
What is gallium?
This halogen is a reddish liquid at room temperature.
What is bromine?
These elements rarely form compounds because they are this.
What is unreactive (inert)?
Alkali metals react violently with this substance.
What is water?
This alkaline earth metal is in Period 5.
What is strontium?
This element in Period 5 belongs to the boron group.
What is indium?
This halogen is a dark purple solid that can turn into vapor easily.
What is iodine?
This noble gas is in Period 4.
What is krypton?
This alkali metal is at the very top of Group 1.
What is lithium?
This alkaline earth metal is found in fireworks and produces green light.
What is barium?
This boron group element is radioactive and rare.
What is thallium?
Halogens are classified as this type of element.
What are nonmetals?
This heavy noble gas is used in high-intensity lamps.
What is xenon?