Periodic Table Flashcards Preview

Yr 8 Science end of year exam > Periodic Table > Flashcards

Flashcards in Periodic Table Deck (37):
1

Element

An element is a substance that is made of only one type of atom. Elements are the simplest substances in the universe.

2

Group

A group is a vertical column in the periodic table. They are ordered in reactivity.

3

Period

A period is a horizontal row left to right on the periodic table.

4

Alkali metals

The alkali metals is group 1 in the periodic table. All elements in that group have 1 electron in it's outer shell

5

Alkaline earth metals

The alkaline earth metals is group 2 in the periodic table. All elements in this group have 2 electrons in their outer shell.

6

Halogens

Halogens is group 7 in the periodic table. All the elements in that group have 7 electrons in their outer shell

7

Noble gases

The noble gases is group 0 in the periodic table. The elements in this group of have 8 electrons in their outer shell.

8

Transition metals

The transition metals are the elements that serve as a bridge between the two sides of the table

9

Periodic table

The periodic table is a table that organises the elements into places that suit the chemical properties that it has

10

Metal + acid

Metal salt + hydrogen

11

Metal +oxygen

Metal oxide

12

Metal + water

Metal hydroxide + hydrogen

13

Displacement reactions

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.
e.g iron nails with copper sulfate

14

Metal ore

An ore is a solid that metal can be extracted from.

15

How are metals extracted from metal ore

The metals below carbon (e.g copper) are extracted by heating it with carbon. Copper oxide + carbon → copper + carbon dioxide. The copper oxide is reduced as carbon is oxidised. For metals above carbon in the reactivity series, they are separated by using electrolysis. This is the breakdown of a current using a electric current.

16

Thermite reaction

A thermite reaction is when a displacement reaction happens but it releases a lot of energy. It is an exothermic reaction

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Reactivity series

The reactivity series is the order of how reactive metals are.

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What is the symbol for Lithium

Li

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What is the symbol for Beryllium

Be

20

What is the symbol for hydrogen

H

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What is the symbol for helium

He

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What is the symbol for boron

B

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What is the symbol for carbon

C

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What is the symbol for nitrogen

N

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What is the symbol for oxygen

O

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What is the symbol for fluorine

F

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What is the symbol for neon

Ne

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What is the symbol for sodium

Na

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What is the symbol for magnesium

Mg

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What is the symbol for aluminium

Al

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What is the symbol for silicon

Si

32

What is the symbol for phosphorus

P

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What is the symbol for sulphur

S

34

What is the symbol for chlorine

Cl

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What is the symbol for argon

Ar

36

What is the symbol for potassium

K

37

What is the symbol for calcium

Ca