3.2.1.1 Particles and Radiation: Constituents of the atom

Question 1

What are the basic components of the atom?

Answer 1

Positively charged nucleus with protons and neutrons
Electrons which orbit the nucleus

Question 2

What is a nucleon?

Answer 2

A proton or neutron in the nucleus

Question 3

What is the size of an atom and nucleus?

Answer 3

atom = 10^-10 m
nucleus = 10^-15

Question 4

What is the charge of a proton?

Answer 4

+1.60*10^-19 C

Question 5

What is the mass of a proton?

Answer 5

1.67*10^-27 kg

Question 6

What is the relative charge of a proton?

Answer 6

1

Question 7

What is the relative mass of a proton?

Answer 7

1

Question 8

What is the charge of an electron?

Answer 8

-1.60*10^-19 C

Question 9

What is the mass of an electron?

Answer 9

9.11*10^-31 kg

Question 10

What is the relative charge of an electron?

Answer 10

-1

Question 11

What is the relative mass of an electron?

Answer 11

1/1840

Question 12

What is the charge of a neutron?

Answer 12

0 C

Question 13

What is the mass of a neutron?

Answer 13

1.67^10^-27 kg

Question 14

What is the relative charge of a neutron?

Answer 14

0

Question 15

What is the relative mass of a neutron?

Answer 15

1

Question 16

What is an ion?

Answer 16

An atom that has lost or gained electrons

Question 17

What is an isotope?

Answer 17

Atoms with the same number of protons and different numbers of neutrons

Question 18

What is the nucleon number?

Answer 18

The total number of protons and neutrons in the atom.
Also called mass number

Question 19

What is a nuclide?

Answer 19

Each type of nucleus
- a specific version of an atom, charaterised by the specific constitution of its nucleus

Question 20

What is specific charge?

Answer 20

The specific charge of a particle is its charge divided by its mass