Other questions in this quiz

2. what is the atomic number in an element?

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

3. what is the relative mass and relative charge of a neutron?

  • mass=1/1840, charge=-1
  • mass=1, charge=0
  • mass=1, charge=+1
  • mass=10, charge=+10

4. where are the protons, neutrons and electrons in an atom?

  • central nucleus = electrons & neutrons, shells = protons
  • central nucleus = protons , shells = electrons & neutrons
  • central nucleus = protons & neutrons, shells = electrons
  • central nucleus = electrons, shells = protons & neutrons

5. Atoms of given element have the same number of what in their nuclei?

  • neutrons
  • electrons
  • protons
  • protons and neutrons
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Comments

Golam Khan

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Hey bro isnt vertical for periods and horizontal for groups?

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