Chemical Bonds Quiz 5/3

Question 1

Metals

Answer 1

elements that are generally shiny

Question 2

nonmetals

Answer 2

elements that have no metallic properties

Question 3

Properties of metals

Answer 3

• higher density
• luster
• ductility
• malleability
• high melting temps
• high strength
• good conductors of electricity and thermal energy

Question 4

malleability

Answer 4

the ability of a substance to be hammered or rolled into sheets

Question 5

Properties of nonmetals

Answer 5

• mainly gasses
• no luster
• insulators for heat and electricity
• low strength

Question 6

chemical bond

Answer 6

a force that holds two or more atoms together in a compound

Question 7

ductility

Answer 7

the ability to be pulled into thin wires

Question 8

subatomic particles

Answer 8

electrons, protons, and neutrons

Question 9

charge of an electron

Answer 9

negatively charges

Question 10

charge of a proton

Answer 10

positive

Question 11

charge of a neutron

Answer 11

neutral

Question 12

When electrons are far from the nucleus, ___________

Answer 12

the bond is weaker

Question 13

stable

Answer 13

full valence shell, has at least 8 valence electrons

Question 14

A dot structure needs:

Answer 14

the symbol of the element and the number of valence electrons

Question 15

unstable

Answer 15

valence shell is not filled, there aren’t at least 8 valence electrons

Question 16

Covalent bond

Answer 16

When nonmetals share electrons

Question 17

A single covalent bond is formed when ______________

Answer 17

when two atoms share one pair of electrons

Question 18

Molecule

Answer 18

a group of atoms held together by covalent bonding that acts as an independent unit

Question 19

A double covalent bond has _______

Answer 19

two pairs of electrons

Question 20

Polar molecule

Answer 20

a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative

Question 21

A triple covalent bond has _________

Answer 21

Three pairs of electrons

Question 22

How to read a chemical formula?

Answer 22

count how many atoms make up the formula

Question 23

ion

Answer 23

an atom that has gained or lost electrons

Question 24

How does an ion differ from a neutral atom?

Answer 24

an ion is created by adding or removing electrons from an, whereas neutral atoms have the same number of protons and electrons

Question 25

Ionic bond

Answer 25

the attraction between positively and negatively charged ion in an ionic compound

Question 26

If an atom loses an electron it will be positive because _____________

Answer 26

It possesses more protons than electrons

Question 27

What families form ionic bonds?

Answer 27

nonmetals and metals

Question 28

If an atom gains an electron it will be negative because _____________

Answer 28

it possesses more electrons than protons