3M1 OFFLINE - Friday 28th January 2022

An atom has an atomic number of 8. What is the electronic configuration of this atom?

• 8

• 2, 4, 2

• 6, 2

• 2, 6

An atom has an atomic number of 16. What is the electronic configuration of this atom?

• 2, 4, 6, 8

• 8, 8

• 2, 8, 6

• 2, 8, 3, 3

An atom has an atomic number of 19. What is the electronic configuration of this atom?

• 2, 16, 1

• 2, 4, 6, 7

• 2, 8, 8, 1

• 19

Can you pick out which of the atoms below are stable?

• 
• 
• 
• 

What is the name of this atom 😲

• neon

• nitrogen

• nickel

• nobelium

Which of the following electronic configurations represent a stable atom?

• 2

• 2, 5

• 2, 8, 3

• 2, 8, 8, 1

The columns on the periodic table that are color coded and describe the number of electrons in the outer shell of the atomic structure of the element:

• families

• groups

• lines

• periods

This sodium atom is stable.

Is this statement true or false?

• TRUE

• FALSE

The fluorine atom is not stable because

• there are 10 neutrons in the atom

• it is poisonous

• the outermost shell does not contain the full number of electrons

• the outermost shell contains the full number of electrons

What determines the stability of an atom?

• The number of electrons in the innermost shell

• The number of electrons in the outermost shell

• The number of neutrons in the nucleus

• The number of protons in the nucleus