The Halogens - Periodic Table

Question 1

What group are the halogens in?

Answer 1

Group 7.

Question 2

What do these atomic symbols stand for? All in group 7:

F
Cl
Br
I
At

Answer 2

F = fluorine
Cl = chlorine
Br = bromine
I = iodine
At = astatine

Question 3

How many electrons do group 7 elements have in their outer shell?

A. 3
B. 6
C. 7

Answer 3

C.

Question 4

Do they have low or high melting and boiling points?

Answer 4

Group 7 all have low melting points, with each one decreasing as you move down the group.