Periodic Table Flashcards

Question

What is the symbol for oxygen

Answer 1

A

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

Answer 2

A

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

Answer 3

A

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

Answer 4

A

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

Answer 5

A

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

Answer 6

A

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

Answer 7

A

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

Answer 8

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

Answer 9

A

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

Answer 10

A

Metal salt + hydrogen

Answer 11

A

Metal oxide

Answer 12

A

Metal hydroxide + hydrogen

Answer 13

A

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

Answer 14

A

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

Answer 15

A

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.