Quiz on Atomic Theory and Structure

What is matter defined as?

• Anything that has mass and volume

• Only solid objects

• Only liquids and gases

• Anything that can be seen

What are molecules made up of?

• Neutrons

• Protons

• Atoms

• Electrons

Who proposed the Solid Sphere Model?

• Niels Bohr

• Albert Einstein

• Ernest Rutherford

• John Dalton

What does the nucleus of an atom contain?

• Only electrons

• Only neutrons

• Electrons and protons

• Protons and neutrons

What is the charge of a neutron?

• Variable charge

• Negative charge

• No charge

• Positive charge

What is the atomic number?

• The number of protons in the nucleus

• The sum of protons and neutrons

• The total mass of an atom

• The number of electrons in an atom

How many electrons can the first energy level hold?

• 32 electrons

• 8 electrons

• 2 electrons

• 18 electrons

What is the mass of electrons compared to protons?

• Equal

• Negligible

• Greater

• Significant

Which element is represented by the symbol 'N'?

• Neon

• Sodium

• Nitrogen

• Nickel

What is the relationship between mass number and atomic number?

• They are unrelated

• Mass number equals atomic number

• Atomic number is the sum of protons and neutrons

• Mass number is the sum of protons and neutrons