The Atom

Which subatomic particle has a negative charge?

• electrons
• protons
• neutrons
• All of these

Which subatomic particle has a positive charge?

• Electrons
• protons
• neutrons
• All of these

Which subatomic particle has no charge?

• Electrons
• Protons
• Neutrons
• All of these

Which subatomic particles are found in the nucleus?

• electrons and neutrons
• neutrons and protons
• protons and electrons
• neutorns, protons, and electrons

An atom has 12 protons and 8 neutrons. What is its mass number?

• 12
• 8
• 20
• 4

An atom has 13 protons and a mass number of 16. How many neutrons does it have?

• 3
• 13
• 16
• 19

An atom that has gained or lost electrons is called an________

• neon
• ion
• neutron
• proton

How is the electron cloud model of the atom different from the bohr model?

• It includes neutrons in the nucleus
• it is larger
• The electrons orbits are less predictable
• The protons have a negative charge

What are the two characteristics of matter?

• Mass and Space

• Height and depth

• Magnetism and electricity

• liquid and solid