Group 1 and Group 7 Elements

Question 1

Will there be a reaction between Chlorine and Potassium Iodide?

Accepted Answer

Yes

Question 2

The alkali metals react with the halogens

Accepted Answer

True

Question 3

Elements in Group 7 are called the...

Accepted Answer

Halogens

Question 4

The further down Group 7, the ___ reactive the elements become.

Accepted Answer

less

Question 5

What is the missing number: ___Li + 2H2O --> 2LiOH + H2

Accepted Answer

2

Question 6

Why does the reactivity increase as you go down Group 1 elements?

Accepted Answer

The electron on the outer shell is further from the nucleus

Question 7

Will there be a reaction between Bromine and Potassium Chloride?

Accepted Answer

No

Question 8

Elements in Group 1 are called the...

Accepted Answer

Alkali metals

Question 9

When lithium reacts with pH 7 water, the solution turns:

Accepted Answer

Higher than pH 7

Question 10

Alkali metals are stored in oil because they react with _____ in the air.

Accepted Answer

Oxygen

Question 11

What will be the colour change when bromine reacts with potassium iodide

Accepted Answer

orange to brown

Question 12

The further down Group 1, the ___ reactive the elements become.

Accepted Answer

more

Question 13

At room temperature, chlorine and fluorine are both...

Accepted Answer

Gases

Questions 13