Inside the atom

Question 1

From Rutherford’s alpha-scattering experiment we know that every atom contains:

Answer 1

• A positively charged nucleus composed of protons and nuetrons.
• Electrons that surround the nucleus.

Question 2

What is a nucleon?

Answer 2

A proton or neutron in the nucleus.

Question 3

Charge: Proton

Answer 3

+1.60 x 10^-19 C

Question 4

Charge: Neutron

Answer 4

0 C

Question 5

Charge: Electron

Answer 5

-1.60 x 10^-19 C

Question 6

Charge relative to proton: Proton

Answer 6

1

Question 7

Mass: Proton

Answer 7

1.67(3) x 10^-27

Question 8

Mass: Neutron

Answer 8

1.67(5) x 10^-27

Question 9

Mass: Electron

Answer 9

9.11 x 10^-31

Question 10

Charge relative to proton: Neutron

Answer 10

0

Question 11

Charge relative to proton: Electron

Answer 11

-1

Question 12

Mass relative to proton: Proton

Answer 12

1

Question 13

Mass relative to proton: Neutron

Answer 13

1

Question 14

Mass relative to proton: Electron

Answer 14

0.0005

Question 15

What are isotopes?

Answer 15

Isotopes are atoms with the same number of protons and different numbers of neutrons.

Question 16

What type of notation is this?

Answer 16

Nuclide/isotope notation

Question 17

What is A?

Answer 17

The nucleon number number AKA mass number, it gives the number of protons and neutrons and an approximate mass of the atom.

Question 18

What is Z?

Answer 18

The proton number AKA atomic number, it gives the number of protons.

Question 22

Work out neutron number?

Answer 22

A-Z

Question 23

Define nuclide

Answer 23

A distinct kind of atom or nucleus characterized by a specific number of protons and neutrons.

Question 24

What is specific charge?

Answer 24

The specific charge of a charged particle is defined as its charge divided by mass.