CC13 Groups in the Periodic Table

Question 1

Why is using helium in a giant air balloon safer than using hydrogen?

Accepted Answer

Helium is inert

Question 2

What is the missing product?

Accepted Answer

MgCl2

Question 3

What is the missing product?

Accepted Answer

Sodium fluoride

Question 4

What is the correct formula of a compound made from Ca2+ and F- ions?

Accepted Answer

CaF2

Question 5

The first atom shown in the diagram is of what element?

Accepted Answer

Lithium

Question 6

Which halogen is a brown liquid at room temperature?

Accepted Answer

Bromine

Question 7

What kind of reaction is shown in the image?

Accepted Answer

Displacement

Question 8

What is the name of the group 1 elements?

Accepted Answer

Alkali metals

Question 9

Which of these displacement reactions will not occur?

Accepted Answer

lithium fluoride + bromine

Question 10

Which of these half equations shows reduction?

Accepted Answer

F + e- --> F -

Question 11

Sodium has 11 electrons. What is its electron configuration?

Accepted Answer

2,8,1

Question 12

Which noble gas is used in filament lamps?

Accepted Answer

Argon

Question 13

What group of elements are in these jars?

Accepted Answer

Halogens

Question 14

Which of these jars (numbered from left to right) contains bromine vapours?

Accepted Answer

3

Question 15

Which of these halogens reacts most vigorously with iron wool?

Accepted Answer

Fluorine

Question 16

Which of these properties is an unusual property of alkali metals when compared to 'normal' metals like iron.

Accepted Answer

Conduct electricity

Question 17

The diagram shown can be used to explain which of the following trends?

Accepted Answer

Increasing reactivity

Question 18

Which of these alkali metals reacts the most vigorously with water?

Accepted Answer

Francium

Question 19

What is the correct explanation for why the reactivity of Group 1 elements increases as you go down the group.

Accepted Answer

Easier to lose an electron

Question 20

What group of the periodic table are the noble gases in?

Accepted Answer

Group 0

Question 21

Which alkali metal produces a lilac flame when added to water?

Accepted Answer

Potassium

Question 22

Which of these correctly shows the reactivity trends in Group 1 and Group 7 as you go DOWN the group

Accepted Answer

Group 1 increase, Group 7 decrease

Questions 22