AFNS — AFNS Chemistry
Atomic Structure
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#9 Electron was discovered by:
A) J.J. Thomson
B) Rutherford
C) Chadwick
D) Dalton
Answer: A
#10 Proton was discovered by:
A) Goldstein / Rutherford work
B) Thomson only
C) Newton
D) Faraday only
Answer: A
#11 Neutron was discovered by:
A) Chadwick
B) Bohr
C) Planck
D) Pauli
Answer: A
#12 Rutherford experiment used:
A) Alpha particles on gold foil
B) Electrons on water
C) Neutrons on lead
D) Protons on copper
Answer: A
#13 Nucleus contains:
A) Protons and neutrons
B) Electrons only
C) Only neutrons
D) Only protons in all atoms
Answer: A
#14 Electrons orbit in:
A) Energy levels / shells
B) Nucleus
C) Protons
D) Neutrons
Answer: A
#15 Atomic number Z is:
A) Number of protons
B) Number of neutrons
C) Mass number
D) Number of electrons in ion only
Answer: A
#16 Mass number A is:
A) Protons + neutrons
B) Protons only
C) Electrons only
D) Neutrons only
Answer: A
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