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