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现在参加这个测试
Atoms Quiz
  • 1. The atoms has how many subatomic particles?
A) 1
B) 2
C) 4
D) 3
  • 2. Which particle has a positive charge?
A) neutron
B) proton
C) electron
D) element
  • 3. Which particle has a negative charge?
A) electron
B) proton
C) element
D) neutron
  • 4. Which particle has a neutral charge (no charge)?
A) electron
B) neutron
C) proton
D) element
  • 5. What is the center of the atom called?
A) nucleus
B) heart of the atom
C) electron cloud
D) neutron
  • 6. What is the charge of the electron cloud?
A) negative
B) both positive and negative
C) neutral (no charge)
D) positive
  • 7. What is the charge of the nucleus?
A) positive
B) both positive and negative
C) negative
D) neutral
  • 8. Where in the atom is the most mass contained?
A) both the nucleus and the electron cloud
B) nucleus
C) heart of the atom
D) electron cloud
  • 9. Which scientist is credited for discovering the neutron?
A) Thomson
B) Bohr
C) Dalton
D) Chadwick
  • 10. Who was the Greek philosopher that discovered the atom?
A) Democritus
B) Rutherford
C) Dalton
D) Thomson
  • 11. Which scientist is credited for discovering the electron?
A) Rutherford
B) Dalton
C) Democritus
D) Thomson
参加了这次测试的学生也参加了 :
Space 2 unit test
Earth 2 unit test
Jtc spring semester test 2016
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