N5 Atomic Structure_End of Unit

What is the centre of the atom called?

• Centre

• Core

• Nucleus

• Middle

What particles make up the nucleus?

• protons

• electrons & neutrons

• protons & electrons

• protons & neutrons

The charge of a proton is __________

The charge of the __________ is negative

The charge of the neutron is

• positive

• neutral

• negative

Which particles orbits the nucleus?

• Proton

• Neutron

• Electron

____________________ = number of protons

mass number = ________________

Why are atoms neutral?

Which of these make up most of the periodic table?

• Metals

• Non-metals