Elements, mixtures and compounds

Question 1

Elements contain only one type of _____. Most are ________.

Answer 1

Element

Monoatomic

Question 2

If atoms are joined together we use the term _________.

Answer 2

Molecules

Question 3

Compounds are

Answer 3

2 or more elements chemically combined

Question 4

How are solutions made?

Answer 4

By dissolving a solid into a liquid

Question 5

What is an element?

Answer 5

A substance which contains only one type of atom and cannot be split up into anything simpler by chemical methods.

Question 6

What is a compound?

Answer 6

Two or more different elements chemically bonded together in fixed proportions. Compounds can only be spilt into their elements by a chemical reaction

Question 7

What is a mixture?

Answer 7

Two or more substances (elements or compounds) which are not chemically combined together, and which are NOT present in fixed proportions. Mixtures can be split into their individual substances using physical techniques.

Question 8

Group 7 has 7 outer electrons, meaning that they would want to _____ one to have a _____ _____

Answer 8

Gain

Full shell