Periodic Table

Question 1

Name these elements - O, Cu, Ar, H, Na, K, C

Answer 1

Oxygen, copper, argon, hydrogen, sodium, potassium, carbon

Question 2

Give the symbols of these elements: calcium, carbon, copper, hydrogen, helium, oxygen and sodium

Answer 2

Ca, C, Cu, H, He, O, Na

Question 3

How is the periodic table organised

Answer 3

By the patterns in the physical and chemical properties of elements

Question 4

What is Dmitri Mendeleev famous for

Answer 4

He created the periodic table in 1869 by organising the known elements by the patterns in their properties

Question 5

What is an element

Answer 5

A substance whose atoms all have the same atomic number (same number of protons)

Question 6

What is an atom

Answer 6

The smallest constituent of matter that has the properties of the element

Question 7

State the name given to the vertical columns in the periodic table

Answer 7

Groups

Question 8

State the name given to the horizontal rows in the periodic table

Answer 8

Periods

Question 9

How can you tell whether an element is a metal or a non-metal

Answer 9

Examine its properties (eg. metals are a good conductor of electricity)

Question 10

Describe three properties of a typical metal

Answer 10

Good conductor, shiny, high density, malleable, ductile and sonorous

Question 11

Describe three properties of a typical non-metal

Answer 11

Poor conductor, dull, low density, brittle, not sonorous

Question 12

What is formed if a metal element reacts with oxygen

Answer 12

A Metal oxide

Question 13

What is formed if a non-metal element reacts with oxygen

Answer 13

A non-metal oxide

Question 14

Describe a difference between metal oxides and non-metal oxides

Answer 14

Non-metal oxides dissolve in water to form acidic solutions. Metal oxides dissolve in water to form alkaline solutions. Most metals oxides are solid at room temperature, many non-metal oxides are gases at room temperature

Question 15

Describe the pattern in physical properties of Group 1 metals

Answer 15

The melting point decreases as you go down the group

Question 16

Describe the pattern in reactions Group 1 metals

Answer 16

They are very reactive and the reactions get more vigorous as you go down the group

Question 17

State one way in which Group 1 element differ from other metals

Answer 17

They have lower melting points than other metals

Question 18

Name the gas produced when group 1 elements react with water

Answer 18

Hydrogen

Question 19

Where would you find the group of elements known as the halogens

Answer 19

Group 7

Question 20

Describe the physical properties of halogens

Answer 20

They have low melting points and do not conduct electricity

Question 21

Describe the pattern in boiling points for the group 7 elements

Answer 21

The boiling point increases as you go down the group

Question 22

Describe the pattern in reactions of the halogens

Answer 22

The reactions get less vigorous as you go down the group

Question 23

Where would you find the group of elements known as the noble gases

Answer 23

Group 0

Question 24

Name the six noble gases

Answer 24

Helium, neon, argon, krypton, xenon, radon

Question 25

Describe the pattern in boiling points for the group 0 elements

Answer 25

The boiling point increases as you go down the group

Question 26

Describe the physical properties of the noble gases

Answer 26

They have very low melting and boiling points. They are colourless gases at room temperature. They glow brightly if high-voltage electricity passes through them

Question 27

State the meaning of the word unreactive

Answer 27

Will not take part in chemical reactions

Question 28

Describe the pattern in chemical properties of group 0 elements

Answer 28

The noble gases get slightly more reactive as you go down the group