Atomic History and Periodic table quiz

Which model correctly describes the locations of protons and electrons in the wave-mechanical model of the atom?

• A

• B

• C

• D

Which is the formula for magnesium sulfide?

• MgSO₃

• MnS

• MnSO₃

• MgS

Which of the following is the chemical name of CuO?

• Copper (II) Oxide

• Copper (I) Oxide

• Copper Oxide

• Copper monoxide

Which of the following is the formula of mercury(II) hydroxide?

• Hg(OH)₂

• Hg₂O

• HgOH

• Hg₂OH

Which of the following are covalent compounds? (Select THREE answers only)

• S₂Cl₃

• Fe₂O₃

• Carbon dioxide

• PO₃

• Aluminum Sulfate

Sequence the correct order of historical developments leading to the modern model of the atom.

• The atom is a hard sphere, Most of the atom is empty space, Electrons exist in orbitals outside the nucleus

• Most of the atom is empty space, The atom is a hard sphere, Electrons exist in orbitals outside the nucleus

• Electrons exist in orbitals outside the nucleus, Most of the atom is empty space, The atom is a hard sphere

• The atom is a hard sphere, Electrons exist in orbitals outside the nucleus, Most of the atom is empty space

Which element has the largest atomic radius? (Select ONE answer only)

• Element A

• Element B

• Element C

• Element D

Which pair of elements have chemical properties that are most similar?

• Be and Ne

• Na and Li

• C and O

• Be and Na

Which periodic family has a full outermost valence shell and rarely reacts with other elements?

• Alkali metals

• Alkaline earth metals

• Halogens

• Noble gases

Which group is known as the halogens?

• 1

• 2

• 17

• 18