C1.1.5 - Sub-Atomic Particles

What three particles make up atoms?

protons, neutrons, electrons

What does amu stand for?

atomic mass unit

Define the atomic mass unit:

1/12 the mass of a single carbon atom

What is defined as '1/12 the mass of a single carbon atom'?

the atomic mass unit

What does e stand for?

elementary charge unit

Define the elementary charge unit:

the charge on an electron

What is defined as 'the charge on an electron'?

elementary charge unit

What is the mass of a proton in amu?

1.0073

Which particle has a mass of 1.0073 amu?

proton

What is the charge of a proton in e?

+1

Which particle has a charge of +1e?

proton

What is the mass of an electron in amu?

0.00055

Which particle has a mass of 0.00055 amu?

electron

What is the charge of an electron in e?

-1

Which particle has a charge of -1e?

electron

What is the mass of a neutron in amu?

1.0087

Which particle has a mass of 1.0087 amu?

neutron

What is the charge of a neutron in e?

0e

Which particle has a charge of 0e?

neutron