Chemistry Quiz: Atomic Structure and Bonding

What does the atomic number of an element represent?

• Number of neutrons
• Number of protons
• Number of electrons
• Mass of the element

Which of the following statements is true about atomic mass?

• It is always a whole number
• It is the average mass of all isotopes
• It only considers protons
• It is the same as atomic number

In an ionic bond, what happens to the electrons?

• They are shared equally
• They are lost by the nonmetal
• They are transferred from metal to nonmetal
• They are created anew

Which of the following compounds is an example of a covalent bond?

• NaCl
• MgF2
• H2O
• CaS

What is the primary characteristic of metals in the periodic table?

• They are good insulators
• They are typically gases
• They conduct electricity and heat
• They have high ionization energies

Which group in the periodic table contains elements with 7 valence electrons?

• Alkali metals
• Alkaline earth metals
• Halogens
• Noble gases

What is the maximum number of valence electrons an atom can have?

• 2
• 4
• 6
• 8

Which of the following elements is a metalloid?

• Aluminum
• Silicon
• Sodium
• Chlorine

What is the name of Group 1 in the periodic table?

• Noble gases
• Alkaline earth metals
• Alkali metals
• Transition metals

What is the charge of a proton?

• Negative
• Neutral
• Positive
• Variable