Understanding Subatomic Particles

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Proton

• Photon

Where are electrons located in an atom?

• In the center of the atom

• In orbitals around the nucleus

• In the outer shell

• In the nucleus

What is the mass of a proton in atomic mass units (amu)?

• 0.0005 amu

• 9.11 amu

• 1 amu

• 1.67 amu

Why are electrons often not included in atomic mass calculations?

• They have a positive charge

• They are much lighter than protons and neutrons

• They are not part of the atom

• They are too heavy

If protons and neutrons are compared to elephants, what animal would electrons be compared to?

• Whales

• Giraffes

• Chihuahuas

• Lions