Chapter 2

Question 1

What is all matter made of?

Answer 1

small particles

Question 2

What can the particles in matter be?

Answer 2

atoms, ions (charged atoms) and molecules (groups of atoms)

Question 3

Roughly what are ions and molecules?

Answer 3

ions are charged atoms and molecules and groups of atoms

Question 4

Can matter be destroyed?

Answer 4

Matter can not be created or destroyed in chemical reactions

Question 5

What are the charges of a proton, neutron and electron?

Answer 5

+1, 0, -1

Question 6

What are the masses of a proton, neutron and electron?

Answer 6

1, 1, 1/1838

Question 7

What are the positions of the proton, neutron and electron?

Answer 7

nucleus, nucleus, shells around nucleus

Question 8

What did the Greeks say about matter?

Answer 8

all matter is made up of minute particles

Question 9

What did Dalton discover?

Answer 9

Dalton’s developed atomic theory

1. All matter is made of very small particles called atoms.
2. Atoms are indivisible, they cannot be broken down.
3. Atoms cannot be created or destroyed

Question 10

Who said that all matter is made of very small particles called atoms?

Answer 10

Dalton

Question 11

Who said that atoms are indivisible, they cannot be broken down?

Answer 11

Dalton

Question 12

Who said that atoms cannot be created or destroyed?

Answer 12

Dalton