Question

This question refers to elements of the periodic table with
atomic numbers from 3 to 18. In the table below, some
elements are shown by letters, even though the letters are
not the usual symbols of the elements.
3 4 5 6 7 8 9 10
A B C D E F G H
11 12 13 14 15 16 17 18
I J K L M
K L M N O P
(a) Which of these is:
(i) a noble gas?
(ii) a halogen?
(iii) an alkali metal?
(iv) an element with valency 4?​

Answer 1

an alkali metal lithium (L)

Answer 2

Answer:

a) is  Neon -10

b) is flourine

C) lithium

\d) carbon hope this helps to  all in exam ;)

Explanation:

4