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Structure Of The Atom
Test Description: Review of chapter 5, Glencoe Matter and Change
Instructions: Answer all questions to get your test result.
1) What is the most amount of energy an atom can gain or lose?
A
quantum
B
particle
C
wave
D
photon
2) What is the maximum electrons that can occupy one orbital?
A
two
B
four
C
varies with the energy level
D
eight
3) What is Bohr\'s model of the atom?
A
electrons are waves not particles
B
electrons can occupy only certain energy levels
C
the location of electrons is unknown
D
electrons occupy a diffuse electron cloud
4) What is Heisenberg\'s uncertainty principle?
A
It is fundamentally impossible to know both the velocity and location of an electron.
B
The existence of the atom can not be proved.
C
We can never know the exact atomic number of an element.
D
All neutrons have an unknown mass.
5) What are the first 3 subshells?
A
s, p, d
B
1, 2 and 3
C
1s1, 2s1 and 3s1
D
x, y, z
6) Who first stated that light is made of particles called photons?
A
Dalton
B
Einstein
C
Bohr
D
Planck
7) Why do atomic emission spectrum show only certain frequencies of light?
A
Because electrons can only occuply certain energy levels.
B
Because protons exist at certain frequencies.
C
Because our equipment can only detect certain frequencies.
D
Because every element is unique.
8) What model of the atom says that electrons act both like particles and like waves?
A
Dalton's model
B
the Bohr model
C
the quantum mechanical model
D
Planck's model
9) What is the photoelectric effect?
A
When metal absorb heat the element gives off protons and neutrons.
B
A camera works by recording the emissions of electrons.
C
When light of a certain frequency is shone on a element, the element emits electrons which give off light at specific frequen
D
When a nucleus undergoes radioactive decay electricity is produced.
10) What is the noble gas configuration for lithium?
A
*Li*
B
1s1 1s1 2s1
C
1s2 2s2
D
Li: [He] 2s1
*select an answer for all questions
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