Exam 1

Question 1

Which photon has the greater energy?

Answer 1

E4s to E3p < E2p to 1s

Question 2

Which photon has the higher frequency?

Answer 2

V4s to V3p > V2p to V1s

Question 3

Which photon has the longer wavelength?

Answer 3

Y4s to Y3p > Y2p to Y1s

Question 4

Which photon has the greater speed?

Answer 4

C4 to 3 = C2 to 1

Question 5

What relative charge does a proton have?

Answer 5

+1

Question 6

Electromagnetic spectrum in order of increasing wavelength

Answer 6

gamme, xrays, UV, infrared, micro, radio

Question 7

solid to gas

Answer 7

sublimnation

Question 8

gas to solid

Answer 8

deposition

Question 9

1cm cubed =

Answer 9

1mL

Question 10

1dm cubed=

Answer 10

1 L

Question 11

Pauli Exclusion Principle

Answer 11

no 2 electrons in an atom can have the same values of their 4 quantum numbers

Question 12

Hunds Rule

Answer 12

if 2 or more orbitals with the same energy are available, one electron goes in each until all are half full

Question 13

Aufbau Principle

Answer 13

Lower energy orbitals fill before higher energy orbitals

Question 14

With increasing energy, the gap between one shell and the next shell…..

Answer 14

decreases

Question 15

Core electrons

Answer 15

electrons in the filled, inner shells in an atom or ion

Question 16

Valence electrons

Answer 16

electrons in the outermost occupied shell of an atom having the most influence on the atoms chemical behavior

Question 17

The photoelectric effect

Answer 17

the release of electrons from a material as a result of electromagnetic radiation striking it

Question 18

Work function

Answer 18

the amount of energy needed to dislodge an electron from the surface of a material

Question 19

threshold frequency

Answer 19

minimum frequency of light required to produce the photoelectric effect

Question 20

Quantum number

Answer 20

one of four related numbers that specify the energy, shape, and orientation of orbitals in an atom and the spin orientation of electrons in the orbitals

Question 21

Node

Answer 21

a location in a standing wave that experiences no displacement

Question 22

J.J. Thompson

Answer 22

cathode ray experiment, said that electrons are negatively charged particles

Question 23

R. Millikan

Answer 23

oil drop experiment, calculated the mass and charge of an electron

Question 24

Plum Pudding Model (Thomson)

Answer 24

the atom contains many negatively charged electrons held together by their attraction, dispersed throughout the atom

Question 25

E Rutherford

Answer 25

gold foil experiment, said that atoms are mostly empty space and have a small dense central core