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Samuels CHEM Electrons Atomic Structure
Test Description: Chemistry Electrons Atomic Structure
Instructions: Answer all questions to get your test result.
1) What instrument is used to separate colors precisely?
A
spectroscope
B
hydroscope
C
spectrometer
D
refractoscope
2) What is a prism that separates light into component wavelengths?
A
spectroscope
B
hydroscope
C
refractoscope
D
spectrometer
3) Who came up with the planetary model of the atom in 1911?
A
Bohr
B
Heisenberg
C
Rutherford
D
Lewis
4) Which model says that electrons stay in specific orbits called energy levels?
A
Heisenberg
B
Bohr
C
Lewis
D
Rutherford
5) What is the lowest energy state in the atom at the lowest orbit?
A
elevated state
B
ground state
C
flat state
D
excited state
6) If an electron moves up an energy level, it is said to be in ______.
A
elevated state
B
ground state
C
flat state
D
excited state
7) Which model says that electrons move around as particles in motion that have properties of waves?
A
wave-mechanical model
B
electron levels model
C
planetary model
D
electron cloud model
8) Which model says that electrons are found in regions called orbitals?
A
electron cloud model
B
wave-mechanical model
C
planetary model
D
electron levels model
9) What principle tells that electrons do not have precisely measurable positions and momenta?
A
Electron configuration principle
B
Heisenberg uncertainty principle
C
Lewis determinate principle
D
Bohr planetary principle
10) This is a region of space where there is a high probability of finding an electron.
A
magnetic spins
B
energy levels
C
nucleus
D
orbitals
*select an answer for all questions
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