Periodic Table

Question 1

Group

Answer 1

A column in the periodic table

Question 2

Period

Answer 2

A row in the periodic table

Question 3

Metals (where are they on the periodic table)

Answer 3

Found on the Lefthand side of the Periodic Table

Question 4

Non-metals (where are they found on the periodic table)

Answer 4

Found on the Righthand side of the Periodic Table

Question 5

Alkali Metals

Answer 5

Group 1 - reactive low density metals

Question 6

`Halogens

Answer 6

Group 7 - non-metal diatomic molecules

Question 7

Noble Gases

Answer 7

Group 8 - unreactive gases

Question 8

Transition Metals

Answer 8

High density metals (often with coloured compounds) found in the middle of the periodic table

Question 9

Atomic Number

Answer 9

The number of protons in the nucleus of an atom

Question 10

Mass Number

Answer 10

The number of protons PLUS neutrons in the nucleus of an atom.

Question 11

Dobereiner

Answer 11

Sorted the known elements into groups of three - or Triads

Question 12

Newlands

Answer 12

Noted recurring patterns in the elements - termed these Octaves

Question 13

Mendelev

Answer 13

Sorted the known elements by Mass but switched some and predicted properties of missing elements

Question 14

Metals (Physical Properties)

Answer 14

High Density, High Melting Point, Shiny, Conduct Heat and Electricity, Malleable and Ductile

Question 15

Non-metals (Physical Properties)

Answer 15

Low density (gases), low melting points (gases or low melting points), dull, insulators, brittle

Question 16

Metalloids (Physical Properties)

Answer 16

Vary - can have a mixure of metallic or non-metallic properties

Question 17

Allotrope

Answer 17

Two different physical forms of the same element (e.g. Diamond and Graphite, or Oxygen and Ozone).

Question 18

Metals (Chemical Properties)

Answer 18

Form Basic Oxides / Hydroxides - e.g. Sodium Hydroxide pH 14

Question 19

Non-Metals (Chemical Properties)

Answer 19

Form Acidic Oxides - e.g. Sulphur Dioxide or Nitrogen Dioxide cause acid rain pH 3

Question 20

Element

Answer 20

A substance that contains atoms of only one type

Question 21

Compound

Answer 21

Two or more DIFFERENT elements chemically combined in a fixed ratio

Question 22

Mixture

Answer 22

Two different substances that are not physically combined with one another (can be separated)

Question 23

Alloy

Answer 23

A mixture of two or more (metal) elements that are not in a fixed ratio

Question 24

Brass

Answer 24

Alloy of Copper and Zinc

Question 25

Bronze

Answer 25

Alloy of Copper and Tin

Question 26

Steel

Answer 26

An alloy of Iron, with Carbon or metallic elements