The Periodic Table

Question 1

What are the three atomic particles in an atom

Answer 1

Neutrons, electrons and protons

Question 2

What is a protons relative mass and charge

Answer 2

1 and +1

Question 3

What is a neutrons relative mass and charge

Answer 3

1 and 0

Question 4

What is an electrons relative mass and charge

Answer 4

1/1840 and -1

Question 5

Describe how scientists work using historical examples

Answer 5

Scientists work to discover new things and learn how they work. They come up with theories and experiments to prove things like the theories on atoms. Ernest Rutherford conducted several experiments and came to the model of the atom we know today

Question 6

Summarise Ernest Rutherford’s discovery on the atom

Answer 6

In 1909 Ernest Rutherford undertook a series of experiments. He fired alpha particles at a thin sheet of gold . Most of the alpha particles did not change direction as most of the atom is empty space. It would only Change direction if it hit the nucleus

Question 7

What does the term Istope mean

Answer 7

Any two or more forms of a chemical element having the same number of protons in its nucleus but having different numbers of neutrons or different atomic weights

Question 8

How do you use the atomic number and mass to work out the number of protons electrons and neutrons in an atom

Answer 8

The number of protons and electrons is the the attic number and you take the atomic number away from the atomic mass and you have your number of neutrons

Question 9

What are the arrangement of shells in an atom

Answer 9

3,8,8