Chapter 11 test

Question 1

which is the correct electron dot diagram for boron, one of group 13 elements

a. B with three dots
b. B with seven dots
c. B with eight
d. B with five dots

Answer 1

a. B with three dots

Question 2

if an electron transfers from one atom to another, what type of bond will most likely form

a. covalent
b. ionic
c. metallic
d. polar

Answer 2

b, ionic

Question 3

what change would make an atom represented by this diagram have the same electron arrangement as a noble gas

a. gaining two electrons
b. gaining four electrons
c. losing two electrons
d. losing four electrons

Answer 3

c. losing two electrons

Question 4

what would make brownie, a grop 17 element, more similar to a noble gas

a. gaining one electron
b. gaining two electrons
c. losing one electron
d. losing two electrons

Answer 4

a. gaining one electron

Question 5

which would most likely be joined by an ionic bond

a. a positive metal ion and a positive nonmetal atom
b. a positive metal ion and a negative nonmetal ion
c. a negative metal ion and a positive nonmetal ion
d. a negative metal ion and a negative nonmetal ion

Answer 5

b. a positive metal ion and a negative nonmetal ion

Question 6

how many dots would a dot diagram for selenium have if its in group 16

a. 6
b. 8
c. 10
d. 16

Answer 6

a. 6

Question 7

which information does the chemical formula CO2 not give you a. number of valence electrons

b. ratio of atoms in the compound
c. total number of atoms in one molecule of the compound
d. type of elements in the compound

Answer 7

a. number of valence electrons

Question 8

what is shared in a metallic bond

a. negatively charged ions
b. neutrons
c. pooled valence electrons
d. protons

Answer 8

c. pooled valence electrons

Question 9

covalent bonds typically form between the atoms of elements that share

a. nuclei
b. oppositely charged ions
c. protons
d. valence electrons

Answer 9

d. valence electrons

Question 10

which compound is formed by the attraction between - and + charged ions

a. bipolar
b. covalent
c. ionic
d. nonpolar

Answer 10

c. ionic

Question 11

the atoms of noble gases do not bond easily with other atoms because their valence electrons are

a. absent
b. moving
c. neutral
d. stable

Answer 11

d. stable

Question 12

atoms lose, gain, or share electrons and become as chemically stable as

a. an electron
b. an ion
c. a metal
d. noble gas

Answer 12

d. noble gas