Basic Terms

Question 1

Ionic Compound

Answer 1

compounds made up of ions

Question 2

Covalent compound

Answer 2

non-metals bond by sharing valence electrons

Question 3

Polyatomic Ion

Answer 3

ions which consist of more than one atom

Question 4

Cation

Answer 4

positive charge ion

Question 5

Anion

Answer 5

negative charge ion

Question 6

properties of Ionic Compounds

Answer 6

form crystals
high melting/boiling points
hard and brittle
conduct electricity in water

Question 7

Properties of Metallic Compounds

Answer 7

silvery
hard
conductive

Question 8

Properties of Metallic compounds

Answer 8

shiny
conductive
solid at room temp
high mp/bp

Question 9

Extensive Properties

Answer 9

mass
length
volume
shape

Question 10

Intensive property

Answer 10

color
boiling point
melting point
density

Question 11

Groups

Answer 11

Column

Question 12

Periods

Answer 12

Rows

Question 13

Avogadros #

Answer 13

the # of molecules in a mole

Question 14

Dimensional Analysis

Answer 14

Convert Units

Question 15

Mass using volume

Answer 15

Volume * Density

Question 16

Atomic Mass

Answer 16

of protons + # of neutrons

Question 17

Atomic Number

Answer 17

of protons (NEVER CHANGES)

Question 18

Isotope

Answer 18

Same element, different # of neutrons

Question 19

properties of non-metals

Answer 19

varied in color
non-conductive
Low melting and boiling points

Question 20

properties of metals

Answer 20

shiny
conductive
solid at room temp ( except mercury)
high melting/boiling points
ductile

Question 21

properties of semi-metals

Answer 21

silvery
solid
semi conductive
brittle

Question 22

oxidation

Answer 22

the process where atoms lose electrons

Question 23

reduction

Answer 23

Gaining electrons (ox# increases)

Question 24

Redox Reaction

Answer 24

Reactions where there’s transfer of electrons (Elements oxidation # changes)

Question 25

Precipitate Reaction

Answer 25

solid that forms from a reaction

Question 26

pH

Answer 26

the negative logarithm of hydrogen ion concentration

Question 27

Arrhenius Rules

Answer 27

Acids add H+ Bases add OH-

Question 28

Ionic Radius

Answer 28

how a radius changes when cations or anions form

Question 29

atomic radius

Answer 29

radius of neutral atom

Question 30

zEff

Answer 30

actual positive charge an e- feels due to shielding

Question 31

ionization energy

Answer 31

energy required to remove an electron from the valence shell of a gaseous atom Trend: down a group, I.E decreases across a period, I.E increases

Question 32

electronegativity

Answer 32

tendency of an atom to attract electrons towards itself Trend: Down a group, E.N decreases Across a period, E.N increases

Question 33

electron affinity

Answer 33

the change in energy that comes from the addition of an electron to a gaseous atom EA negative => energy released EA positive => energy absorbed