First Year Revision Quiz

The smallest part of an element that can be still identified as that element is called an _______

• atom

• electron

• molecule

• proton

What number tells us the number of electrons in an atom?

• Proton Number (aka atomic number)

• Neutron number

• Mass number

• Seven

How many neutrons are there in an atom?

• mass number - proton number

• mass number + proton number

• mass number

• proton number

WHat does this hazard symbol mean?

• harmful

• toxic

• pirates

• corrosive

What does this symbol mean?

• no cricket bats in the lab

• pressurised gas

• corrosive

• harmful

What does this hazard symbol mean?

• explosive

• harmful

• toxid

• corrosive

Which is a the best diagram of a beaker?

• 
• 
• 
• 

What is this?

An atom of iron has 26 protons and a mass number of 56. It has __ neutrons.

Particles in a _________ are touching but able to move past each other.

• solid

• liquid

• gas

• plasma