Chemistry Quiz

Which of the following is a pure substance that cannot be broken down into anything simpler by chemical methods?

• Element

• Compound

• Mixture

• Solution

Mercury and bromine are unique among elements because they are the only two:

• Solid metals

• Liquid elements

• Gaseous non-metals

• Semi-metals

Which of the following statements is true about metals and non-metals?

• All metals and non-metals conduct electricity

• Only non-metals conduct electricity

• All metals conduct electricity, but most non-metals do not

• Neither metals nor non-metals conduct electricity

What is the smallest part of an element that has the chemical properties of that element?

• Molecule

• Atom

• Proton

• Electron

Which sub-atomic particle has a relative charge of +1?

• Electron

• Neutron

• Proton

• Nucleus

Where are protons and neutrons located in an atom?

• In the electron shells

• In the nucleus

• Outside the atom

• In the atomic symbol

What is the atomic number of an atom equal to?

• Number of neutrons

• Number of electrons

• Number of protons

• Number of shells

What is the mass number of an atom?

• Number of protons only

• Number of neutrons only

• Number of protons plus number of neutrons

• Number of electrons plus number of protons

Which of the following best describes the movement of electrons in an atom?

• Electrons are stationary in the nucleus

• Electrons move around the nucleus in shells

• Electrons move randomly outside the atom

• Electrons are fixed with protons in the nucleus

What does the full atomic symbol of an element represent?

• Only the element's name

• Only the number of electrons

• Atomic number, mass number, and element symbol

• Only the number of neutrons