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Atomic Structure
  • 1. These are substances that made up of one kind of atom
A) Element
B) molecule
C) compound
D) ion
  • 2. An atom is made up of time particles called
A) element, neutron,
B) proton, plasma, molecule
C) plasma, proton, neutron
D) proton, neutron, electron
  • 3. The positive (+) particle of an atom is
A) electron
B) neutron
C) proton
D) plasma
  • 4. The negative (-) particle of an atom is
A) electron
B) element
C) neutron
D) proton
  • 5. What is the charge of neutron?
A) none
B) negative
C) positive
D) both
  • 6. What are the particles located at the nucleus?
A) electron and proton
B) neutron and electron
C) proton and neutron
D) proton and plasma
  • 7. What particles orbit around the nucleus?
A) electrons
B) neutrons
C) neutrons and protons
D) protons
  • 8. How elements are arranged in the periodic table?
A) according to atomic mass
B) according to atomic number
C) according to number of ions
D) according alphabetical order
  • 9. An element has 5 protons and 7 electrons. What is its atomic mass?
A) none
B) 5
C) 12
D) 7
  • 10. If an element as an atomic number of 8 and a mass number of 17, what is the number of neutrons?
A) 9
B) 8
C) 10
D) 7
  • 11. I have 19 atomic number, what element am I?
A) silver
B) potassium
C) copper
D) gold
  • 12. What number is equal to the number of proton in the atom?
A) electron
B) neutron
C) element
D) molecule
  • 13. How many neutrons in sodium -23 (Na-23)?
A) 15
B) 17
C) 12
D) 11
  • 14. These are element with the same number of protons but with different number of neutrons
A) isometric
B) compound
C) isotope
D) isomers
  • 15. A charge atoms is called
A) element
B) ion
C) positive
D) compound
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