C2- Periodic Table

Question 1

How are the elements arranged in the Periodic Table?

Answer 1

The Elements in the Periodic Table are arranged into groups and periods.

Question 2

Where are groups and periods on the periodic table?

Answer 2

Groups go down the periodic table.

Periods go across the Periodic Table

Question 3

Why has the ordering of the periodic table changed over time?

Answer 3

1) New discoveries are being made and more theories are being developed.
2) New elements have been discovered
3) The weight of other elements have changed

Question 4

What is the difference in structure between metals and non-metals?

Answer 4

Metals have a positive charge as well as ionic bonding whereas non metals have a negative charge.

Question 5

How is electronic structure related to the periodic table? Give 2 points.

Answer 5

1) Elements which are in the same group have the same number of valence electrons
2) It gives them similar chemical properties which is why they are in the same group

Question 6

What is a nickname for Group 1 Elements?

Answer 6

The Group 1 Elements are known as the Alkali Metals.

Question 7

How many electrons do Group 1 Elements have in their valence shell?

Answer 7

All Group 1 Elements have 1 electron in their valence shell.

Question 8

What is the trend as you go down group 1?

Answer 8

1) Reactivity is increased

2) Lower melting points and higher melting points

Question 9

What type of COMPOUNDS do Alkali Metals form with Non-Metals?

Answer 9

Group 1 Elements form Ionic Compounds with Non-Metals

Question 10

Give some features of Alkali Metals

Answer 10

1) Soft

2) Low density

Question 11

What are ionic compounds like?

Answer 11

1) They are usually white solids

2) They usually dissolve in water

Question 12

Do Group 1 Elements react with water?

Answer 12

1) Yes they do react with water

2) They all react in a similar way

Question 13

How do Group 1 Elements react with water?

Answer 13

1) They react vigorously

2) They react to produce hydrogen gas and metal hydroxides

Question 14

How reactive are the elements going down group 1?

Answer 14

1) The elements are more reactive.

2) This means they will react more vigorously

Question 15

Do Group 1 Elements react with Chlorine?

Answer 15

Yes they do react with Chlorine

Question 16

In what way do Group 1 Elements react with Chlorine?

Answer 16

1) They react vigorously when HEATED in chlorine gas.

2) They form metal chloride salts

Question 17

Do Group 1 Elements react with Oxygen?

Answer 17

Yes they do react with Oxygen

Question 18

What happens when Alkali Metals react with Oxygen?

Answer 18

1) They form Metal Oxides.

2) Different types of oxides form depending on the metal

Question 19

What are Group 7 elements also known as?

Answer 19

Group 7 elements are also known as the Halogens.

Question 20

Are the Halogens metals or non-metals?

Answer 20

The Halogens are non-metals, they have a negative charge.

Question 21

What are the trends going down Group 7?

Answer 21

1) Elements become less reactive.
2) They have higher melting and boiling points
3) They have higher relative atomic masses

Question 22

What type of compounds can Halogens produce?

Answer 22

Halogens can produce Molecular Compounds.

Question 23

What type of bonds do Halogens form with metals?

Answer 23

They form Ionic Bonds with Metals

Question 24

What type of ions do the Halogens form?

Answer 24

1) They form 1- ions with metals, known as halides.

Question 25

What type of reaction can occur between a more reactive Halogen and the “salt”of a less reactive one?

Answer 25

A DISPLACEMENT reaction can occur

Question 26

Do Halogens have a full shell?

Answer 26

1) No

2) They are 1 electron short of a full shell