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WorksheetsAtomic structure fyugp
Total questions: 10
Worksheet time: 10mins
Who proposed the planetary model of the atom?
J.J. Thomson
Ernest Rutherford
Niels Bohr
Max Planck
What particle is negatively charged in an atom?
Proton
Neutron
Electron
Positron
In which experiment was the electron discovered?
Gold foil experiment
Oil drop experiment
Cathode ray experiment
X-ray diffraction experiment
What does the principal quantum number (n) represent?
Shape of the orbital
Orientation of the orbital
Spin of the electron
Size and energy level of the orbital
According to the Bohr model, the angular momentum of an electron in an atom is:
Continuous
Quantized as nℏ
Quantized as n2ℏ
Zero
What is the maximum number of electrons that can occupy a p-subshell?
6
8
2
4
What is the main concept of the Heisenberg Uncertainty Principle?
Energy levels are quantized
It is impossible to know both the exact position and momentum of an electron simultaneously
The shape of orbitals is defined
Electrons revolve in fixed paths around the nucleus
Which quantum number describes the shape of an orbital?
Spin quantum number (s)
Principal quantum number (n)
Angular momentum quantum number (l)
Magnetic quantum number (m)
The Pauli Exclusion Principle states that:
The uncertainty principle limits the measurement of position and velocity
Electrons fill orbitals from low to high energy
No two electrons in an atom can have the same set of four quantum numbers
Electrons occupy degenerate orbitals singly before pairing
The energy of an electron in the nth orbit of a hydrogen atom is proportional to:
n
1/n
n2
1/n2
