Elements

Which element is this?

Which element is this?

Which element is in group 4, period 2?

Which element is in group 15, period 3?

Which element is in period 1, group 18?

• hydrogen

• helium

• sodium

• argon

How many groups are there on the periodic table?

• 7

• 10

• 18

• 20

Which 2 elements is water made up of?

• hydrogen

• helium

• carbon

• oxygen

Which of these is NOT a subatomic particle?

• neutron

• electron

• elementron

• proton

A mystery element has an atomic number of 6 and a mass number of 12. Which element is this?

• carbon

• nitrogen

• oxygen

• magnesium

A mystery element has an atomic number of 14 and a mass number of 28. Which element is this?

• nickel

• krypton

• phosphorus

• silicon