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Regents Chemistry Unit 5
Test Description: Electrons!
Instructions: Answer all questions to get your test result.
1) Who developed the early model of the atom, saying that it was a solid, indestructible sphere?
A
John Dalton
B
Ernest Rutherford
C
Isaac Boone
D
JJ Thompson
2) JJ Thompson’s “Chocolate Chip Cookie” (or plum pudding) model said that there must be something “stuck” in the positively charged “cookie dough.” What are they?
A
Electrons
B
Positrons
C
Neutrons
D
Protons
3) Ernest Rutherford used an intricate experiment involving gold foil and alpha particles to determine that an atom is made up mostly of
A
electrons
B
fruitons
C
empty space
D
protons
4) Neils Bohr observed that light was given off in specific wavelengths and that each element emitted a specific spectrum of colored waves. This led him to conclude that electrons travel around the nucleus in
A
diffraction gratings
B
taxi cabs
C
energy levels
D
positrays
5) The current quantum mechanical model of the atom say that an electrons path around the nucleus is more like a
A
Rain drop
B
Lightening strike
C
Cloud
D
Jelly donut
6) What happens to an electron when it is given energy?
A
It turns into a proton
B
It goes up an energy level
C
It gives off light
D
It goes down an energy level
7) When an electron goes down an energy level it gives off energy in the form of
A
light
B
neutrons
C
protons
D
positrons
8) The color of light given off by an electron dropping down to a lower energy level depends on
A
the distance the electron drops
B
the type of electron given off
C
the color of the light you need
D
the amplitude of the wave
9) Which energy level has the lowest amount of energy?
A
4
B
2
C
1
D
3
10) What term is used to describe the outermost shell of electrons?
A
Bohr
B
Principal Energy Level
C
Valence
D
Haplotype
11) What term is to describe the most desirable number of electrons in the valence shell?
A
Binary Configuration
B
Stable Octet
C
Octomom
D
Positive Neutron
12) What term is used to describe an atom that has its electrons moved to a higher than normal energy level?
A
Ground
B
Excited
C
Stable
D
Light
13) What term describes an atoms attraction to electrons when involved in a chemical bond?
A
Atomic Radius
B
Light
C
Electronegativity
D
Ionization Energy
14) What term describes the amount of energy it would take to remove the most loosely bound electron from at atom?
A
Electronegativity
B
Atomic Radius
C
Ionization Energy
D
Perfrunctorality
15) When an atom of an element gains or loses an electron in becomes an
A
ion
B
isotope
C
inversion
D
prion
16) Positively charged ions are also known as
A
Cations
B
Positrons
C
Covalences
D
Anions
17) What type of ion has a larger radius than the original atom?
A
Anion
B
Gamma
C
Cation
D
Positron
*select an answer for all questions
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