Halogens

Q.

The most non-metallic element in group 17 is:

1. F

2. Cl

3. Br

4. I

Q. Write the symbols for the following elements.
a) Oxygen
b) Gold
c) Calcium
d) Cadmium
e) Iron

Q.

What is the charge of the alkali metals?

Q. The symbol Cu is used for:

1. Copper
2. Cobalt
3. Calcium
4. Silver