AQA Chemistry - Paper 1

True or False? "The number of protons in an atom is sometimes different to the number of neutrons."

• True

• False

What is the name for the elements in Group 0 of the periodic table?

• Alkali metals

• Halogens

• Noble gases

True or False? "The further down Group 7 you go, the more reactive the elements get."

• True

• False

What is a substance made of only one kind of atom called?

• An element

• A compound

• A metal

What did Niels Bohr suggest about electrons?

• They are inside a ball of positive charge.

• The electrons orbit the nucleus at fixed distances called shells (energy levels).

True or False? "A mixture can only be separated into its parts by breaking the chemical bonds."

• True

• False

Which side of the periodic table are the Metals found?

• Left

• Right

Magnesium has 12 electrons. What is it electronic structure?

• 6, 6

• 8, 4

• 2, 8, 2

When sodium and bromine react together which element forms positive ions?

• Sodium

• Bromine

What type of structure does silicon dioxide have?

• Giant covalent

• SImple molecular

• Ionic lattice