Quiz  /  Atomic Structure Class 10 MCQ Questions With Answers

  • 1. 
    Measure mainly of the nuclear particles: protons + neutrons

  • Subatomic Particles
  • Atomic Number
  • Atomic Mass
  • Gluons

  • 2. 
    What is the mass number of this atom?

  • 1
  • 3
  • 4
  • 7

  • 3. 
    Which subatomic particles contribute the most to the mass of an atom?

  • Protons, Neutrons, Electrons
  • Protons only
  • Protons and Electrons
  • Protons and Neutrons

  • 4. 
    Which of the following determines the identity of an element?

  • number of protons
  • atomic mass
  • number of neutrons
  • number of shells

  • 5. 
    Where electrons are likely to be found as they travel around the nucleus

  • Nucleus
  • Electron Cloud
  • Within a Proton
  • Within a Neutron

  • 6. 
    How many protons does an aluminium atom have? (Use the image to help you)

  • 27
  • 14
  • 40
  • 13

  • 7. 
    Atoms of the same element with a different number of neutrons

  • Ion
  • alloy
  • Isotope
  • Quarks

  • 8. 
    Calculation used to find the number of neutrons in an atom

  • Mass Number- Atomic Number
  • Atomic Number - Mass Number
  • Mass Number - Electrons
  • protons = electrons = neutrons

  • 9. 
    A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

  • Electron Shells
  • Orbitals
  • Electron Cloud
  • Nucleus

  • 10. 
    Arrangement of elements organized by atomic number

  • Electron Cloud
  • Periodic Table
  • Electron Configuration
  • None of these

  • 11. 
    How many neutrons does a sodium atom have? (Use the image to help you)

  • 23
  • 11
  • 12
  • 34

  • 12. 
    How is the number of neutrons in the nucleus of an atom calculated?

  • Add the number of e- and p+ together
  • Subtract the number of e- from p+
  • Subtract the number of p+ from the mass number
  • Add the mass number to the number of e-

  • 13. 
    What does the 6 represent?

  • Atomic mass
  • atomic number
  • chemical symbol
  • element name

  • 14. 
    Subatomic particles that are neutral in charge

  • Neutrons
  • Protons
  • Nucleus
  • Electrons

  • 15. 
    In order for an atom to be neutral what has to be true?

  • The atom has more protons than neutrons
  • The atom has more neutrons than protons
  • The atom has the same number of protons and neutrons
  • The atom has the same number of protons and electrons

  • 16. 
    What is the mass number?

  • the number of protons in the nucleus
  • the number of protons and neutrons in the nucleus
  • the number of neutrons in the nucleus
  • the number of protons and electrons in the atom

  • 17. 
    Subatomic particles with a positive charge

  • neutrons
  • atomic mass
  • protons
  • isotopes

  • 18. 
    What does the C represent?

  • atomic mass
  • atomic number
  • element name
  • chemical symbol

  • 19. 
    If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?

  • 12 neutrons
  • 12 electrons
  • 12 protons
  • 24 protons and neutrons

  • 20. 
    Subatomic particles with a negative charge

  • Electrons
  • Neutrons
  • Protons
  • Quarks

  • 21. 
    What is the atomic number of the atom pictured?

  • 9
  • 10
  • 18
  • 19
Report Question
warning
access_time
  Time