how excited
chapters 9-13
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you will need a periodic table
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Chapter 9 Honors Physics 9th Grade

For each question below, click on the circle next to the correct answer. When you are finished with the test, push the 'Score my test' button at the bottom of the page. Good luck! This should help you with youre final!! It better!! I may be putting notes on the internet. only time will tell, literally. good luck with finals to all.

 

Question #1
Pauli's exclusion principle states that each electron in an atom must have its unique

A. principal quantum number
B. orbital quantum number
C. magnetic quantum number
D. set of four quantum numbers

 

Question #2
In the electron configuration 1s2 2s2 2p1 the number of electrons in the third shell is

A. two
B. 3
C. zero
D. 5

 

Question #3
The electron configuration 1s2 2s2 2p2 2p1 2p1 is the ground state configurarion of

A. Be
B. O
C. He
D. none of these

 

Question #4
The correct electron configurarion for the sodium atom (Na) in the ground state is

A. 1s2 2s2 2p2 2p2 2p2 3s1
B. 1s2 2s2 2p2 2p2 2p2 3p1
C. 1s2 2s2 2p2 2p2 2p2 3s2

 

Question #5
The outer shell of a sodium atrom (Na) is

A. 23
B. 11
C. 1
D. 2
E. none of these

 

Question #6
Heisenberg's uncertainty principle states that it is impossible to know simultaneously which two properties of a particle?

A. Time and place
B. Position and velocity
C. Position and charge
D. Momentum and energy

 

Question #7
Who discovered the nucleus of the atom in 1911

A. Thomson
B. Rutherford
C. Bohr
D. Dalton

 

Question #8
The billiard ball model of the atom is associated with

A. Thomson
B. Rutherford
C. Dalton
D. Bohr

 

Question #9
The plum pudding model of the atom is associated with

A. Rutherford
B. Thomson
C. Bohr
D. Dalton

 

Question #10
The greater the frequency of light, the greater the ___ of its photons.

A. energy
B. wavelength
C. speed
D. velocity

 

Question #11
Which of these colors of light has photons with the greatest amount of energy?

A. Red
B. Yellow
C. Green
D. Blue

 

Question #12
Who won the Nobel Prize for explaining the photoelectric effect?

A. Bohr
B. Planck
C. de Broglie
D. Einstein

 

Question #13
The calculation of electron energy levels in the hydrogen atom was first done by

A. Bohr
B. Heinsenberg
C. de Broglie
D. Schredinger

 

Question #14
Niels Borh focused his attention on the element hydrogen because it was most

A. pure
B. inexpensive
C. abundant
D. simple

 

Question #15
The lines in the visible region of the hydrogen spectrum are known as the

A. Balmer series
B. Lyman series
C. Bohr series
D. Paschen series

 

Question #16
The lines in the visible region of the hydrogen spectrum arise from transitions from higher levels backc to the level where n=

A. 1
B. 2
C. 3
D. 4

 

Question #17
When an electron in an atom falls from a higher energy level to a lower one, a ______ is _______.

A. photon, emitted
B. proton, emitted
C. photon, absorbed
D. proton, absorbed

 

Question #18
Which is a possible value for the principal quantum number n?

A. 3.17
B. 7
C. 7.5
D. -.75
E. none of these

 

Question #19
When an electron goes from an excited state to the ground state,

A. a photon is absorbed
B. a photon is emitted
C. energy is absorbed
D. none of these occur

 

Question #20
According to the hypothesis of de Broglie, any moving paricle has

A. energy
B. an electric force field
C. a magnetic force field
D. a wavelength

 

Question #21
The dual nature of matter was confirmed when it was found that electrons

A. diffract
B. posses a negative charge
C. have a plus or minus spin quantum number
D. have mass

 

Question #22
In 1925, who found came up with the idea that matter (and light) has the properties of both waves and particles?

A. Pauli
B. Bohr
C. Heisenberg
D. de Broglie
E. Planck

 

Question #23
With which object would the wave nature of matter be significant?

A. an orbiting planet
B. a baseball being thrown
C. a speeding truck
D. a moving electron

 

Question #24
The maximum number of elctrons that can be contained in the n=2 shell is

A. 2
B. 6
C. 4
D. 8
E. 10

 

Question #25
The maximum number of electrons that can be contained in a p subshell is

A. 2
B. 6
C. 8
D. 10
E. 14

 

 

This test was made with free online software from Merex Corporation.




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