Atoms,elements,compounds & Mixtures

Question 1

What is an element

Answer 1

An element is a substance made up of just one type of atom- a pure substance
They can be solids, liquids or gases

Question 2

What is a compound

Answer 2

A compound is a substance that is made up of more that one type of atom joined together
Compound can be made by reacting two elements toghther

Question 3

What is a molecule

Answer 3

A molecule is a small group of atoms joined toghther, they can be elements or compound

Question 4

H

Answer 4

Hydrogen

Question 5

O

Answer 5

Oxygen

Question 6

N

Answer 6

Nitrogen

Question 7

C

Answer 7

Carbon

Question 8

He

Answer 8

Helium

Question 9

S

Answer 9

Sulfur

Question 10

Fe

Answer 10

Iron

Question 11

Al

Answer 11

Aluminium

Question 12

Ag

Answer 12

Silver

Question 13

It metals on the left of the periodic table to right

Answer 13

Left

Question 14

H2O

Answer 14

Means two hydrogen atoms and one oxygen atom

Question 15

MgO

Answer 15

Means one magnesium atom and one oxygen atom

Question 16

CaCO3

Answer 16

Means one calcium one carbon and three oxygen atoms

Question 17

CuSO4

Answer 17

One copper one sulphur and four oxygen atoms

Question 18

What is a atom

Answer 18

All mater in the universe is male up of tiny particles called atoms. Around 100 types of atoms have been discovered so far