Matter

Question 1

What is Matter?

Answer 1

Matter is anything that occupies space or has mass and can exist in any three states.

Question 2

What are Elements and Compounds?

Answer 2

An element is a substance that contains only one type of atom. e.i. oxygen, hydrogen, carbon, copper, silver

A compound is a substance that contains more than one type of atom. e.i. water, sugar

Question 3

What is the difference between atoms and molecules?

Answer 3

ATOMS are the smallest unit which an ELEMENT can be broken down and still possess the properties.

MOLECULES are the smallest INDEPENDENT unit a SUBSTANCE can be broken down and still possess the properties.

Question 4

Describe the body of an atom

Answer 4

A dense nucleus that is contained with Neutrons and Protons - protons refer to the atomic number of an atom – that is surrounded by electrons within the valence orbit. Within these orbits, each has a respective number 2, 8, 18, 32 and 50, the electrons can be freed due to an increase in the centrifugal force

Question 5

The difference of electrons between conductors, semi-conductors, and insulators?

Answer 5

Conductors have 1 to 3 electrons and can be freed easily. e.i. silver and copper

Semi-conductors have exactly 4 electrons and are neither a good conductor or insulators. e.i. carbon and silicon

Insulators have 5 to 8 electrons and are difficult to be freed. e.i. helium