chapter 5 and 6

Question 1

amplitude of a wave

Answer 1

waves length from zero to the crest

Question 2

wavelength

Answer 2

distance between the crests

Question 3

frequency

Answer 3

number of wave cycles to pasas given point per unit of time

Question 4

wavelength and frequency are

Answer 4

inversely proportional

Question 5

equation for speed of light

Answer 5

speed of light = frequency x wavelength

Question 6

speed of light

Answer 6

3.0 x 10^8 m/s

Question 7

energy of a photon of light

Answer 7

energy = planks constant x frequency

Question 8

planks constant

Answer 8

6.63 x 10^-34

Question 9

electromagnetic radiation

Answer 9

radio waves, microwaves, infrared waves, visible light, uv rays, x rays, gamma rays

Question 10

which light has the longest wavelength and lowest frequency

Answer 10

red

Question 11

when atoms absorb energy,

Answer 11

atoms move into higher energy levels

Question 12

ground state

Answer 12

when the electron has its lowest possible energy

Question 13

heisenberg uncertainty principle

Answer 13

it is impossbiel to know exactly both the position and the velocity of a particle at the same time

Question 14

how did mendeleev organize his periodic table?

Answer 14

increasing atomic mass

Question 15

modern periodic table is arranged by

Answer 15

increasing atomic number

Question 16

periodic law

Answer 16

there is a periodic repition of physical and chemical properties

Question 17

metals

Answer 17

good conductors of heat and electric current, high luster, ductile, malleable

Question 18

nonmetals

Answer 18

poor conductors of heat, gases at room temperature,

Question 19

metalloid

Answer 19

jas properties of both metals and nonmetals

Question 20

family

Answer 20

columns on the periodic table

Question 21

period

Answer 21

rows on the periodic table

Question 22

alkali metal example

Answer 22

francium

Question 23

noble gas example

Answer 23

helium

Question 24

what is the name given to the two rows on the bottom of the periodic table

Answer 24

inner transition metas

Question 25

metalloids list

Answer 25

boron, silicon, germanium, arsenic,antimony, tellurium, polonium, astatine

Question 26

1a elements

Answer 26

alkali metals

Question 27

2a

Answer 27

alkaline earth metals

Question 28

nonmetals of group 7a are called

Answer 28

hologens

Question 29

groups 1a through 7a

Answer 29

representative elements, s and p of highest occupied energy level not filled, group number equals the number opf electrons in the highest occupied eergy level

Question 30

transition metal

Answer 30

highest ocupied s sublevel and nearby d sublevel contain electrson

Question 31

inner transition metal

Answer 31

highest occupied s and nearby f contain electrons

Question 32

atomic radius

Answer 32

one half the ditance between the nuclei of two atoms of the same element when the atoms are joined

Question 33

atomic size

Answer 33

increases from top to bottom and decreases left to right

Question 34

ion

Answer 34

atom of group of atoms that has a posititve or negatvie charge

Question 35

cation

Answer 35

ion with a positive charge

Question 36

anion

Answer 36

ion with a negative charge

Question 37

ionization energy

Answer 37

energ required to remove an electron from an atom

Question 38

ionization energy trends

Answer 38

increases left to right, decreases top to bottom

Question 39

carions are always

Answer 39

smaller than the atoms from which they form

Question 40

anions are always

Answer 40

larger than the atoms from which they form

Question 41

electronegativity

Answer 41

the ability of an atom of an elemtnt o attract electrons when the atom is in a compoud