Test 5 Review

Question 1

properties of alkali metals

Answer 1

1. form cations
2. lose one electron
3. found in plant ash

Question 2

properties of alkaline earth metals

Answer 2

1. exist as cations
2. 2+
3. found in earth crust

Question 3

known as the salt-formers

Answer 3

Group 17- Halogens

Question 4

forms 2+ ions

Answer 4

alkaline earth metals

Question 5

periodic back and forth motion

Answer 5

wave

Question 6

distance between two correspond points on a wave

Answer 6

wavelength (lambda)

Question 7

frequency and wavelength are ____________ operations

Answer 7

inverse

Question 8

the waves strength

Answer 8

amplitude

Question 9

rate at which a wave travels

Answer 9

speed

Question 10

proposed the particle theory of light

Answer 10

Newton

Question 11

proposed the idea of the electromagnetic wave

Answer 11

Maxwell

Question 12

the electromagnetic wave is..

Answer 12

an electric component and a magnetic component

Question 13

symbol for speed of light

Answer 13

c

Question 14

the arrangement of all possible electromagnetic waves

Answer 14

electromagnetic spectrum

Question 15

proposed the dual nature of light

Answer 15

Einstein

Question 16

packet of light or energy

Answer 16

photon

Question 17

in the equation E = hF, h stands for

Answer 17

Planck’s constant

Question 18

Planck’s constant

Answer 18

6.63 x 10 ^-34

Question 19

element used initially with the spectrum

Answer 19

hydrogen

Question 20

proposed the model of the atom where the electrons lose energy and collide

Answer 20

Rutherford’s model

Question 21

model after Rutherford’s that proposes energy levels to keep organized orbits

Answer 21

Bohr’s model

Question 22

the lowest energy level an electron can have

Answer 22

ground state

Question 23

any energy level higher than the ground state is said to be an

Answer 23

excited state

Question 24

states that it is impossible to simultaneously determine the position and momentum of an object

Answer 24

Heisenberg’s uncertainty principle

Question 25

KNOW COMBINING CAPACITY

Question 26

KNOW ALL PERIODIC TRENDS

Question 27

KNOW ALL COMPONENTS OF PERIODIC TABLE

Question 28

proposed the electron cloud model

Answer 28

Born

Question 29

the aufbau principle states that

Answer 29

electrons fill lowest to highest energy levels

Question 30

four quantum numbers

Answer 30

principle (n) - energy level; required for address subshell (l) - shape; required for address magnetic (m sub l) - orientation in space; required for address spin (m sub s) - spin/rotation

Question 31

the electron configuration tells

Answer 31

1. where the electrons are 2. what element is it 3. the chemical properties

Question 32

Hund's rule

Answer 32

electrons fill up all one way before pairing

Question 33

KNOW HOW TO WRITE ELECTRON CONFIGURATION

Question 34

as wavelength increases, frequency

Answer 34

decreases

Question 35

type of wave in which light consists

Answer 35

electromagnetic wave

Question 36

speed of light in meters per second

Answer 36

3.00 x 10^8 m/s

Question 37

the complete range of wavelengths or frequencies of electromagnetic radiation

Answer 37

electromagnetic spectrum

Question 38

seven broad categories the electromagnetic spectrum is divided into

Answer 38

radio waves, microwaves infrared waves visible light ultraviolet waves x-rays gamma rays

Question 39

the amount of energy a photon contains is proportional to the

Answer 39

frequency

Question 40

Pauli exclusino principle

Answer 40

it is impossible to simultaneously determine the momentum and the position of an electron with precision

Question 41

what is an orbital

Answer 41

region in space in which there is a high probability of finding the electron

Question 42

what is an orbit

Answer 42

definite path in which and electron can be found

Question 43

what is the electron configuration

Answer 43

complete arrangement of electrons in an atom

Question 44

the electron configuration of an atom determines how the atom _____________________ and influences ____ and ____________ of molecules that are found

Answer 44

1. chemically bonds 2. shape and properties

Question 45

number that describes a property of an electron according to the Schrodinger equations

Answer 45

quantum number

Question 46

one of the earliest chemists to show similarity of properties for groups of elements by arranging them in TRIADS

Answer 46

Dobereiner

Question 47

demonstrated the periodicity of elements for groups of eight elements (octaves)

Answer 47

Newlands

Question 48

arranges elements according to atomic mass with varying sizes of periods and with elements having similar properties in the same group; led to the modern periodic table

Answer 48

Mendeleev

Question 49

showed that the periodicity of the elements was related to atomic number rather than to atomic mass

Answer 49

Moseley

Question 50

properties of alkali metals

Answer 50

1. low densities 2. very chemically reactive 3. never found in their free state 4. react with water to produce hydrogen gas and metal hydroxide 5. react with oxygen and water vapor in the air

Question 51

properties of alkaline earth metals

Answer 51

1. silvery-white 2. malleable 3. ductile, 4. less soft and have higher densities and melting points 5. less reactive than alkali metals 6. still too reactive to be found naturally as free elements

Question 52

atomic radius; metallic character

Answer 52

decreases across increases down

Question 53

ionization energy electron affinity electronegativity

Answer 53

increases across decreases down

Question 54

energy involved in ADDING an electron to a neutral gaseous atom

Answer 54

electron affinity

Question 55

energy needed to REMOVE an electron from a neutral gaseous atom

Answer 55

first ionization energy

Question 56

describe electronegativity

Answer 56

the ability of an atom to attract electrons to itself when it is chemically combined with another atom