Electrons Arrangement & Reactivity Quiz

What determines the place of an element in the Periodic Table?

• Number of electrons

• Number of shells

• Number of protons

• Number of neutrons

How many electrons can the innermost shell of an atom contain?

• 4

• 6

• 2

• 8

What is the electron configuration for calcium?

• 2,8,8,1

• 2,8,8,2

• 2,8,8

• 2,8,2

What is the octet rule?

• Atoms need 8 electrons in their outermost shell to be stable

• Atoms need 10 electrons in their outermost shell to be stable

• Atoms need 18 electrons in their outermost shell to be stable

• Atoms need 6 electrons in their outermost shell to be stable

How many electrons can the third electron shell hold?

• 8

• 10

• 18

• 12

What is the main difference between an electron shell diagram and a 'Bohr' diagram?

• The placement of electrons

• The use of a stable octet

• The number of shells used

• The placement of the dot in the center

How many electrons can the second shell of an atom contain?

• 10

• 8

• 6

• 12

What is the electron configuration for lithium?

• 2,8,1

• 2,8,8,1

• 2,1

• 2,8,8,2

What is the electron configuration for potassium?

• 2,8,8,1

• 2,8,8,2

• 2,8,1

• 2,1

How many electrons can the fourth electron shell hold?

• 8

• 18

• 10

• 12