Quiz  /  Valence electrons Class 9 MCQ Questions With Answers

  • 1. 
    How many valence electrons does sulfur have?

  • 2
  • 4
  • 6
  • 8

  • 2. 
    How many valence electrons does Aluminum Have?

  • 1 Valence electron
  • 2 Valence electron
  • 3 Valence electron
  • 4 Valence electron
  • 5 Valence electron

  • 3. 
    When electrons are found in higher energy levels, further from the nucleus and are unstable we say that these electrons are in...

  • the ground state
  • the excited state
  • the valence state
  • the neutral state

  • 4. 
    The outer most electrons are called...

  • valence electrons
  • heavy electrons
  • emission electrons
  • Excited electrons

  • 5. 
    How many valence electrons does Neon Have?

  • 4 Valence electron
  • 5 Valence electron
  • 6 Valence electron
  • 7 Valence electron
  • 8 Valence electron

  • 6. 
    How many valence electrons does Argon Have?

  • 4 Valence electron
  • 5 Valence electron
  • 6 Valence electron
  • 7 Valence electron
  • 8 Valence electron

  • 7. 
    Which of the following elements has six valence electrons?

  • scandium
  • selenium
  • strontium
  • sodium

  • 8. 
    This is a Lewis Dot structure for nitrogen (N). What can you determine from this figure?

  • Nitrogen has 5 valence electrons
  • Nitrogen has 5 electrons
  • Nitrogen has 5 orbitals
  • Nitrogen is stable

  • 9. 
    This is the Lewis Dot structure for carbon (C). What can you determine from this figure?

  • Carbon has 4 valence electrons
  • Carbon has 4 orbitals
  • Carbon has 4 electrons
  • Carbon has an atomic mass of 4

  • 10. 
    When electrons in an atom go from the excited state to the ground state they release energy in the form of...

  • heat
  • light
  • sound
  • potential

  • 11. 
    As an electron moves closer to the nucleus toward lower orbitals that electron...

  • gains energy
  • loses energy
  • remains at constant energy

  • 12. 
    This is a Lewis Dot structure for neon (Ne). What can you determine from this figure?

  • Nitrogen has 4 valence electrons
  • Nitrogen has 8 electrons
  • Nitrogen has 4 orbitals
  • Nitrogen is stable because it completes the octet rule

  • 13. 
    How many valence electrons does Sodium Have?

  • 1 Valence electron
  • 2 Valence electron
  • 3 Valence electron
  • 4 Valence electron
  • 5 Valence electron

  • 14. 
    As an electron moves further away from the nucleus toward higher orbitals that electron...

  • gains energy
  • loses energy
  • remains at constant energy

  • 15. 
    Which of the following elements has four valence electrons?

  • barium
  • sulfur
  • iodine
  • tin

  • 16. 
    This subatomic particle is involved in forming chemical bonds and building compounds...

  • protons
  • neutrons
  • valence electrons
  • nucleus

  • 17. 
    Lewis Dot Structures provide information about an atom. It tells us...

  • how many valence electrons it has
  • how many total electrons it has
  • how many protons it has
  • the size of the atom

  • 18. 
    When electrons are found in lower energy levels and are in a stable orientation we say that these electrons are in...

  • the ground state
  • the excited state
  • the valence state
  • the neutral state

  • 19. 
    How many valence electrons does Fluorine Have?

  • 4 Valence electron
  • 5 Valence electron
  • 6 Valence electron
  • 7 Valence electron
  • 8 Valence electron

  • 20. 
    How many valence electrons does Silicon Have?

  • 1 Valence electron
  • 2 Valence electron
  • 3 Valence electron
  • 4 Valence electron
  • 5 Valence electron

  • 21. 
    Which of these elements has 7 valence electrons?

  • bromine
  • boron
  • barium
  • bismuth

  • 22. 
    How many valence electrons does Helium Have?

  • 1 Valence electron
  • 2 Valence electron
  • 3 Valence electron
  • 4 Valence electron
  • 5 Valence electron

  • 23. 
    When electrons in an atom go from the ground state to the excited state they produce something called...

  • an absorption spectra
  • an emission spectra
  • the visual spectra
  • white light

  • 24. 
    How any valence electrons does strontium have?

  • 1
  • 2
  • 4
  • 6

  • 25. 
    Which of the following elements has one valence electron?

  • chlorine
  • sodium
  • tin
  • oxygen

  • 26. 
    How many valence electrons does Boron Have?

  • 1 Valence electron
  • 2 Valence electron
  • 3 Valence electron
  • 4 Valence electron
  • 5 Valence electron

  • 27. 
    How many valence electrons does Potassium Have?

  • 1 Valence electron
  • 2 Valence electron
  • 3 Valence electron
  • 4 Valence electron
  • 5 Valence electron

  • 28. 
    Which of these elements has five valence electrons?

  • carbon
  • sodium
  • arsenic
  • argon

  • 29. 
    The octet rule tells us that atoms are "happy" or stable when...

  • they have 8 neutrons in the nucleus
  • they have 18 neutrons in the nucleus
  • they have 8 electrons in their outer most orbital
  • they have 18 electrons in their outer most orbital

  • 30. 
    How many valence electrons does chlorine have?

  • 2
  • 3
  • 6
  • 7
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