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Chemistry
Поширений: Jones
  • 1. What are the three subatomic particles of an atom?
A) proton, valences, and bohrs
B) shell, symbol,and proton
C) protons, nucleus, and electron cloud
D) protons, neutrons, and electrons
  • 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) nucleus
B) electron
C) neutron
D) proton
  • 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) nucleus
C) electron cloud
D) shells
  • 10. Which element has 8 valence electrons, 18 protons and 22 neutrons?
A) Argon
B) Bromine
C) Fluorine
D) Titanium
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