Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices provided. (1) A pentaatomic tetrahedral molecule may be polar or nonpolar depending on the identities of the atoms present.
(2) A bond between atoms that differ in electronegativity by 2.1 units is classified as a polar covalent bond.
(3) The sum of the number of valence electrons a nonmetallic atom has and the number of covalent bonds it "normally" forms is eight.

Question

Quizplus · Accepted Answer

Statement (1) is true because the polarity of a molecule depends on the symmetry and the electronegativity of the atoms involved. Statement (2) is false because a bond with an electronegativity difference of 2.1 is typically considered ionic. Statement (3) is true due to the octet rule, where nonmetals tend to form enough covalent bonds to achieve a total of eight valence electrons.

Characterize EACH of the Three Given Statements as Being TRUE