chapter 6 section 2

Question 1

7 diatomic molecules

Answer 1

hydrogen
bromine
chlorine
fluorine
iodine
nitrogen
oxygen

Question 2

the energy required to break a chemical bond and form neutral isolated atoms

Answer 2

bond energy

Question 3

the sharing of two pairs of electrons

Answer 3

double bond

Question 4

when carbon is involved in a molecule, where would you place it when drawing the structure of it

Answer 4

center

Question 5

neutral group of atoms that are held together by covalent bonds

Answer 5

molecule

Question 6

a chemical compound whose simplest units are molecules

Answer 6

molecular compound

Question 7

three examples of molecular compounds

Answer 7

water, oxygen, and sucrose

Question 8

indicates the relative number of atoms of each kind in a chemical compound by using atomic symbols and numerical subscripts

Answer 8

chemical formula

Question 9

shows the types and numbers of atoms combined in a single molecule of a molecular compound

Answer 9

molecular formula

Question 10

potential energy decreases when

Answer 10

the atoms are drawn together by attractive forces

Question 11

potential energy is at a minimum when

Answer 11

attractive forces are balanced by repulsive forces

Question 12

potential energy increases when

Answer 12

repulsion between like charges outweighs attraction between opposite charges

Question 13

distance between two bonded atoms at their minimum potential energy; average distance between two bonded atoms is the

Answer 13

bond length

Question 14

the energy required to break a chemical bond and form neutral isolated atoms

Answer 14

bond energy

Question 15

bond length is represented by what

Answer 15

pm

Question 16

bond energy is represented by what

Answer 16

kJ/mol

Question 17

in general, when bond length decreases, bond energy

Answer 17

increases

Question 18

chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electrons in its highest occupied energy level

Answer 18

octet rule

Question 19

most main group elements tend to form

Answer 19

covalent bonds

Question 20

electron configuration notation in which only the valence electrons of an atom of a particular element are shown, indicated by dots placed around the element’s symbol

Answer 20

electron-dot notation

Question 21

indicates the kind, number, arrangement, and bonds but not the unshared pairs of the atoms in a molecule

Answer 21

structural formula

Question 22

covalent bond in which one pair of electrons is shared between two atoms

Answer 22

single bond

Question 23

double and triple bonds are referred to as

Answer 23

multiple bonds

Question 24

refers to bonding in molecules or ions that cannot be correctly represented by a lewis structure

Answer 24

resonance