Chemistry Year 11 Keywords recap

Small particle with a negative charge

• Electron

• Proton

• Neutron

• Shell

Small particle with no charge

• Electron

• Proton

• Neutron

• Shell

Small particle with a positive charge

• Electron

• Proton

• Neutron

• Shell

Where protons and neutrons are found in an atom

• Nucleus

• Shells

Where electrons are found in an atom

• Nucleus

• Shells

Number of protons and neutrons added together on periodic table are found

• Atomic number

• Relative atomic mass

On the periodic table where the number of protons OR electrons are found

• Atomic number

• Relative atomic mass

The mass of a proton or neutron

• 1

• 0.0005

Mass of an electron

• 1

• 0.0005

What Mendeleev left in the periodic table for undiscovered elements

• Elements

• Gaps

• Protons

• Groups