C1 Atomic Structure

An____ is the smallest part of an element that can exist.

What is an element?

• smallest part of an atom

• substance made up of two different atoms

• substance made up of one type of atom

• substance made up of non-metals only

What do we call the change of state when we heat a liquid?

What do we call the change of state when a gas cools?

Where are protons and neutrons found?

• In the nucleus

• Outside the nucleus

• On the energy levels

• On the electron shells

What is the relative mass of a proton?

What is the relative mass of a neutron?

What is the relative mass of an electron?

• 0

• very small

• -1

• 1

What is the relative charge of a proton?

• +1

• -1

• 0

• 2

What is the relative charge of a neutron?

• +1

• -1

• 0

• 2