Year 7 Chemistry Starter

What is the name of the 7th element on the periodic table?

• Argon

• Lithium

• Carbon

• Helium

The ___________ determines how many energy shells an element has.

Which of the following atoms have four valence electrons?

• Carbon

• Oxygen

• Aliminium

• Boron

NaCl is table salt. Is it a compound or a mixture

• Mixture

• Compound

Choose the most reactive atom in the list.

• Argon

• Francium

• Helium

• Neon

Pick the halogens in the list below:

• Potassium

• Iodene

• Krypton

• Chlorine

The ___________ determines how many valence electrons an atom has.

Caesium is stored in argon gas because of its reactivity to air.

• True

• False

Check the boxes that describe the properties of metals.

• Shiny

• Not good at conducting electricity

• Good at conducting heat

• Brittle

Carbon has four energy shells.

• True

• False