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Nda Chemistry Atomic Structure Quiz
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Nda Chemistry Atomic Structure Quiz
Quiz
Question 1. Who discovered the electron?
Rutherford
J.J. Thomson
Niels Bohr
Chadwick
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Question 2. Neutron was discovered by:
J.J. Thomson
Rutherford
James Chadwick
Dalton
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Question 3. The nucleus of an atom was discovered by:
Bohr
Rutherford
J.J. Thomson
Goldstein
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Question 4. Who gave the planetary model of the atom?
Dalton
Niels Bohr
Rutherford
J.J. Thomson
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Question 5. Which particle carries a negative charge?
Proton
Neutron
Electron
Nucleus
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Question 6. The number of protons in an atom is called:
Mass number
Atomic number
Neutron number
Valency
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Question 7. Isotopes are atoms of the same element with:
Same mass number, different atomic number
Same atomic number, different mass number
Different atomic number and mass number
None of the above
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Question 8. Which of the following is an isotope of hydrogen?
H₂O
Deuterium
Ozone
Helium
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Question 9. The maximum number of electrons in the second shell (L shell) is:
2
8
18
32
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Question 10. The mass of an electron is approximately:
Equal to proton
Twice that of neutron
1/1837 of a proton
Equal to neutron
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