chemestry chapter 12

there are ___ electrons represented in the dot diagram of CCI4

32

there are ______ electrons represented in the dot diagram of OH

8

in drawing a lewis structure, each nonmetal atom except hydrogen should be surrounded by

8 electrons

which of the following substances conducts electricity

Zn

if the center of the positive and negative charges are separated the molecule is

asymmetric

what are shared in a covalent bond

electrons

when a chemical bond forms between two atoms, _______ are shared or transferred

electrons

in an asymmetric molecule, all of the atoms bonded to the center atom are not

identical

all polar molecules, must have at least one

ione pair

a ________ molecule has a positive end and a negative end

ionic

what is the molecular geometry of SiO2

linear

bent and ______ shapes are always polar

trigonal pyramidal

what is the molecular geometry of PF3

trigonal pyramidal

an asymmetric molecule is

unbalanced

what group of elements satisfy the octet rule without forming compounds

noble gas

CCI4

nonpolar

N2

nonpolar

when positive and negative charges are balanced, the molecule is

nonpolar

if two covalently bonded atoms are identical, the bond is

nonpolar covalent

what type of bond exists between the atoms in O2

nonpolar covalent

the type of bond in N2 gas is a(an)

nonpolar covalent bond

CH3CI

polar

H2S

polar

HCI

polar

NCI3

polar

if the atoms that share electrons have an unequal attraction for the electrons, the bond is called

polar

lone pairs cause a molecule to be

polar

the type of bond between sulfur and oxygen in SO3 is a(an)

polar covalent bond

compared with nonmetals , the number of valance electrons in metals is generally

smaller

how many electrons does Nitrogen need to satisfy the octet rule

3

a triple bond involves the sharing of ___ electrons between two atoms

6

which of the following substances dissolve in water to form a solution that conducts electricity

KF