Question

symmetry:
2. Draw, wherever possible, a rough sketch of
(i) a triangle with both line and rotational symmetries of order more than 1.
(ii) a triangle with only line symmetry and no rotational symmetry of order more
than 1.
(iii) a quadrilateral with a rotational symmetry of order more than 1 but not a line
symmetry.
(iv) a quadrilateral with line symmetry but not a rotational symmetry of order more than 1.
​

Answer 1

Answer:

One limitation of the octet rule is that it cannot be applied to the nonmetals after silicon in the Periodic Table. These elements can “expand their octet” and have more than eight valence electrons around the central atom.

Answer 2

Answer:

I help you but your answer is not sure