Octet rule

Question 1

octet rule meaning

Answer 1

Noble gases are very stable as their outermost shell is completely full, it has 8 electrons that are paired.

Atoms ‘want’ to be in this stable state; this is the ‘Octet Rule’

When elements bond so that the resulting compound has a full outer shell of paired electrons they are said to obey the ‘octet rule’.

Question 2

There are exceptions to the Octet Rule

Answer 2

Molecules with an odd number of electrons

Molecules in which an atom has less than an octet

Molecules in which an atom has more than an octet

Question 3

can have more than electrons in outer shell if

Answer 3

as elements in group 3 have 3d subshell so can use all 5 of outer shell electrons

Question 4

Where can expansion of the octet not be used

Answer 4

group one or 2 as no d sub shell