Ch. 4

Question 1

relative charges of proton, neutron, electron

Answer 1

positive, neutral, and negative

Question 2

where does 4s go in electron configuration?

Answer 2

after 3p and before 3d

Question 3

max number of electrons in sublevel s, p, d, and f?

Answer 3

s: 2
p: 6
d: 10
f: 14

Question 4

where does 5s go in electron configuration?

Answer 4

after 4p and before 4d

Question 5

what are the shapes of the orbitals?

Answer 5

S is a sphere
P is a dumbell

Question 6

a value indicating the number of protons in the nucleus of an atom

Answer 6

atomic number

Question 7

a symbolic method for expressing the composition of an atomic nucleus

Answer 7

atomic notation

Question 8

atoms of the same elements that have a different number of neutrons

Answer 8

isotope

Question 9

a unit of mass exactly equal to 1/12 the mass of a C-12 atom

Answer 9

atomic mass unit

Question 10

the average mass of all the naturally occurring isotopes of an element

Answer 10

atomic mass

Question 11

the distance a light wave travels to complete one cycle

Answer 11

wavelength

Question 12

the number of times a light wave completes a cycle in one second

Answer 12

frequency

Question 13

a general term that can refer to either visible or invisible radiant energy

Answer 13

light

Question 14

a range of light energy extending from violet to red, that is, approximately 400-700nm

Answer 14

visible spectrum

Question 15

a range of light extending from gamma rays to microwaves

Answer 15

radiant energy spectrum

Question 16

a band of light energy that is uninterrupted

Answer 16

continuous spectrum

Question 17

a particle of radiant energy

Answer 17

photon

Question 18

a model of the atom that describes electrons circling the nucleus in orbits

Answer 18

Bohr atom

Question 19

an orbit of specific energy that electrons occupy as they circle the nucleus

Answer 19

energy level

Question 20

a collection of narrow bands of light produced by atoms of a given element releasing energy

Answer 20

emission line spectirum

Question 21

an electron energy level that results from splitting a main energy level

Answer 21

energy sublevel

Question 22

a shorthand description of the arrangement of electrons by sublevels according to increasing energy

Answer 22

electron configuration

Question 23

a statement that it is impossible to precisely measure the location and energy of the particle at the same time

Answer 23

uncertainty principle

Question 24

a sophisticated model of the atom that describes the energy of an electron in terms of its probability of being found in a particular location about the nucleus

Answer 24

quantum mechanical atom

Question 25

a region about the nucleus in which there is a high probability of finding an electron with a given energy

Answer 25

orbital