What is the attractive force that holds atoms together in a molecule called?

• Hydrogen bond

• Covalent bond

• Chemical bond

• Ionic bond

According to the octet rule, how many electrons do atoms strive to have in their outer shell?

• 8

• 2

• 6

• 4

What type of bond is formed by the sharing of a pair of electrons between two atoms?

• Hydrogen bond

• Metallic bond

• Covalent bond

• Ionic bond

Which theory helps predict the geometry of simple molecules based on electron pair repulsion?

• Kössel-Lewis Approach

• VSEPR Theory

• Molecular Orbital Theory

• Valence Bond Theory

What is the term for the energy required to break one mole of bonds in a gaseous state?

• Bond length

• Bond enthalpy

• Bond order

• Bond energy

In a chemistry class, Ria is learning about the formation of NaCl. She wonders what happens to the electron from sodium during this process.

• It is gained by sodium

• It remains with sodium

• It is lost to chlorine

• It is shared with chlorine

What is the shape of a molecule with four bonding pairs and no lone pairs?

• Tetrahedral

• Trigonal planar

• Octahedral

• Linear

Which of the following statements about Lewis structures is true?

• They only apply to ionic compounds.

• They cannot be used for polyatomic ions.

• They show the arrangement of valence electrons.

• They represent actual shapes of molecules.

What is the bond order in a molecule with a triple bond?

• 2

• 4

• 1

• 3

Which of the following is a limitation of the octet rule?

• It is only applicable to ionic compounds.

• It does not account for molecular shapes.

• It cannot explain the behavior of noble gases.

• It applies to all elements.