Test 1

Question 1

All substances are made up of what

Answer 1

Tiny little particles called atoms

Question 2

Atoms are made up of what

Answer 2

Three smaller particles called fundamental particals called protons neutrons and electrons

Question 3

What is protons relative mass and relative charge

Answer 3

Relative mass is 1 relative charade is +1

Question 4

What is neutrons relative mass and relative charge

Answer 4

Relative mass 1 relative charge zero

Question 5

What is electrons a relative mass and relative charge

Answer 5

Relative mass very small relative charge -1

Question 6

All atoms are

Answer 6

Neutral because they have the same of protons and electrons

Question 7

Who discovered electrons

Answer 7

J.J tompson in 1886 150 years ago