SCI8_U5.1 The structure of the atom

What is an atom made up of?

• Protons and neutrons
• Protons and electrons
• Neutrons and electrons
• Protons, neutrons, and electrons

What is at the center of every atom?

• An electron
• A compound
• A molecule
• A nucleus

Which two particles make up the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Molecules and Compounds
• Neutrons and Electrons

Discovered the nucleus

• Democritus
• Robert Millikan
• James Chadwick
• Ernest Rutherford

What number indicates an electron?

• 1
• 2
• 3
• 4

What number indicates the nucleus?

• 1
• 2
• 3
• 4

A particle that moves around the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

Positively charged particles located in the nucleus of an atom

• protons

• quarks

• electrrons

• neutrons

The particles with no charge in an atom are the _______.

• electrons
• neutrons
• protons
• protons and neutrons

The positively charged particles of an atom are the ________.

• electrons
• protons
• neutrons
• protons & neutrons