Unit 4- chemical bonding

Question 1

Inter (stem word)

Answer 1

between or among

Question 2

Intra (stem word)

Answer 2

within

Question 3

Intermolecular forces

Answer 3

forces between different substances

Question 4

intramolecular forces

Answer 4

chemical bonds

Question 5

chemical bond

Answer 5

a force/mutual electrical attraction that holds atoms together in a substance

Question 6

Electronegativity

Answer 6

measure of the ability of an atom to attract electrons
#<0.5 covalent
#= 0.5-2
#>2 ionic bond

Question 7

Compound

Answer 7

two or more elements chemically combined

Question 8

Chemical formula

Answer 8

used to tell what elements and how many of each element are in a unit of a compound

Question 9

Octet rule

Answer 9

atoms will gain, lose or share electrons in order to have 8 electrons on their last energy shell

Question 10

Stability

Answer 10

full/complete outer energy level of valence electrons

Question 11

covalent bond

Answer 11

bond that results between nonmetallic elements that share electrons forming a molecule

Question 12

Molecule

Answer 12

compound formed when two or more elements are covantley bond

Question 13

Properties of covalent bonds

Answer 13

Made up of nonmetals SHARING electrons
Molecules that can be solid, liquid or gas
Low melting and boiling points
Cannot conduct electricity when dissolved in water

Question 14

Ionic bonds

Answer 14

when atoms transfer electrons in order to be stable

Question 15

properties of ionic bonds

Answer 15

Between metal and nonmetals
High melting points and boiling points
Can conduct electricity when dissolved in water