Metals
Metalloids
Non-Metals
Halogens
Alkali Metals
100

This metal is commonly used to make coins and has the symbol cu. 

What is Copper?

100

This metalloid is commonly used in electronics and has the symbol Si.

What is Silicon?

100

This non-metal is a colorless gas essential for breathing and has the symbol O.

What is Oxygen?

100

This halogen is commonly used in toothpaste, and has the symbol F.

What is Fluorine?

100

This alkali metal is the lightest and most abundant, and has the symbol Na. 

What is Sodium?

200

This metal, known for its use in batteries, has the symbol Li.

What is Lithium?

200

This metalloid is used in making glass and detergents and has the symbol B.

What is Boron?

200

This non-metal is a yellow element that is commonly used in fertilizers, and has the symbol S.

What is Sulfur?

200

This halogen is a greenish-yellow gas, and has the symbol Cl.

What is Chlorine?

200

This alkali metal is commonly found in bananas, and has the symbol K. 

What is Potassium?

300

This metal is often used in construction for its strength and has the symbol Fe. 

What is Iron?

300

This metalloid is a key component of semiconductors and has the symbol Ge.

What is Germanium?

300

This non-metal element is the building block of life.

What is Carbon?

300

This halogen is commonly used in medicine and antiseptics, and has the symbol I.

What is Iodine?

300

This alkali metal is very soft, and has a low melting point, and has the symbol Fr. 

What is Francium?

400

This dense, silvery-white metal is used in aerospace and has the symbol Ti.

What is Titanium?

400

This metalloid, which is know for its use in flame retardants, has the symbol Sb.

What is Antimony?

400

This non-metal is a pale yellow gas often used in disinfectants, and has the symbol Cl.

What is Chlorine?

400

This halogen is used in flame retardants and is a reddish-brown liquid at room temperature, and is symbolized by Br. 

What is Bromine?

400

This alkali metal is used in research for atomic clocks, and has the symbol Rb.

What is Rubidium?

500

This rare and precious metal is known for its resistance to corrosion and is often used in jewelry.

What is Gold?

500

This metalloid, often found in electronic components, has the symbol As.

What is Arsenic?

500

This non-metal element makes up about 78% of the Earth's atmosphere.

What is Nitrogen?

500

This halogen is very rare and radioactive, and has the symbol At. 

What is Astatine? 

500

This alkali metal is used in photoelectric cells.

What is Cesium?