Periodic Table

Question 1

What does the periodic table include

Answer 1

All of the elements that we have discovered

Question 2

Periods

Answer 2

Horizontal rows

Question 3

Groups

Answer 3

Vertical columns

Question 4

What are the properties of metals

Answer 4

Shiny
Good conductors of heat
Good conductor of electricity
High density

Question 5

What is group 1 called

Answer 5

Alkali metals

Question 6

What is group 7 called

Answer 6

The halogens

Question 7

What is group 0 called

Answer 7

Noble gasses

Question 8

Properties of alkali metals

Answer 8

• solids at room temperature (melting and boiling points decrease
moving down the group)
• very reactive (reactivity increases moving down the group)
• good conductors of heat and electricity
• soft
• shiny when cut
• low density

Question 9

Properties of halogens

Answer 9

• some solids, a liquid and some gases at room temperature (melting and boiling points increase moving down the group)
• very reactive (reactivity decreases moving down the group)
• poor conductors of heat and electricity
• solids are brittle
• low density

Question 10

Properties of noble gasses

Answer 10

gases at room temperature (the melting and boiling points increase as you move down the group)
• unreactive (however reactivity increases slightly as you move down the group)
• poor conductors of heat and electricity
• low density

Question 11

Who put together the first version of the periodic table

Answer 11

Mendeleev

Question 12

What does malleable mean

Answer 12

Metals can be hammered into thin sheets or bent without shattering

Question 13

What is an alloy

Answer 13

A combination of different metals

Question 14

Which metals are magnetic

Answer 14

Iron, nickel and cobalt

Question 15

What do metals look like after being polished

Answer 15

Shiny

Question 16

Do most non metals reflect light

Answer 16

Yes most non metals do not reflect electricity

Question 17

Brittle meaning

Answer 17

Hard but can break easily

Question 18

What are the melting and boiling points of non metals like

Answer 18

Low

Question 19

Are non metals magnetic

Answer 19

No they most definitely arent

Question 20

What are the factors of a polymer (plastics)

Answer 20

1) Polymers are usually insulators of heat and electricity.
2) They’re often flexible- they can be bent without breaking.
3) They have a low density - they can be very light for their size and strength. This makes them ideal for making things that need to be strong but not heavy.
4) They’re easily moulded - - they can be used to manufacture equipment with almost any shape.

Question 21

Molecule definition

Answer 21

A group of atoms bonded together

Question 22

Compound meaning

Answer 22

A thing made of 2 or more separate elements by a chemically combining them

Question 23

Mixture meaning

Answer 23

2 or more elements formed by physically mixing them together

Question 24

What is a composite material

Answer 24

Materials made from 2 or more materials stuck together

Question 25

Polymers are made….

Answer 25

… by joining molecules together in chains