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Chemistry
供稿人: Jones
  • 1. What are the three subatomic particles of an atom?
A) shell, symbol,and proton
B) protons, neutrons, and electrons
C) proton, valences, and bohrs
D) protons, nucleus, and electron cloud
  • 2. What is the family number for the element Neon?
  • 3. How many shells does the element Magnesium have in the electron cloud?
  • 4. How many electrons can be placed in the first shell (k)?
  • 5. How many protons does Boron contain?
  • 6. What subatomic particle determines an atoms identity?
A) neutron
B) proton
C) electron
D) nucleus
  • 7. How many neutrons does the element Sodium contain?
  • 8. What is the atomic mass of Potassium?(rounded)
  • 9. Where in the atom are protons and neutrons found?
A) not sure
B) shells
C) electron cloud
D) nucleus
  • 10. Which element has 8 valence electrons, 18 protons and 22 neutrons?
A) Bromine
B) Fluorine
C) Titanium
D) Argon
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