Question

chemistry
question 6: standard c.pm.1
which scientist discovered electrons?
a. bohr
b. thomson
c. dalton
d. rutherford
question 7: standard c.pm.1
which scientist made the planetary model of the atom?
a. bohr
b. thomson
c. dalton
d. rutherford
question 8: standard c.pm.1
which part of the atom is positively charged and found in the nucleus?
a. proton
b. neutron
c. electron
d. all of the above
question 9: standard c.pm.1
which part of the atom is negatively charged and moves around the nucleus?
a. proton
b. neutron
c. electron
d. all of the above
question 10: standard c.pm.1
what part of the atom has no charge and is found in the nucleus?
a. proton
b. neutron
c. electron
d. all of the above
question 11: standard c.pm.1
what model of the atom was created as a result of thomsons atomic discoveries?
a. cell model
b. gold foil model
c. plum pudding model
d. proton model

Explanation:

• Q6: J.J. Thomson identified electrons via cathode ray experiments.
• Q7: Niels Bohr proposed the planetary (solar system) atomic model.
• Q8: Protons are positively charged, located in the nucleus.
• Q9: Electrons are negatively charged, orbit the atomic nucleus.
• Q10: Neutrons are neutral, reside in the atomic nucleus.
• Q11: Thomson's work led to the Plum Pudding atomic model.

Answer:

Question 6: b. Thomson
Question 7: a. Bohr
Question 8: a. Proton
Question 9: c. Electron
Question 10: b. Neutron
Question 11: c. Plum Pudding Model