Year 10 - Term 1

Question 1

JJ Thomson Plum pudding model - what does it look like?

Answer 1

Atoms were neutral made up of a solid ball of positive charge and smaller negative particles stuffed inside

Question 2

Rutherford model of the atom - what does it look like?

Answer 2

neutral. A ball of positive charge and mass orbited by negative particles. the atom is mostly nothing

Question 3

what’s an alpha particle

Answer 3

positive subatomic particles

Question 4

What do shells?

Answer 4

the amount of energy an electron can have

Question 5

The shell in which the electrons have the most…

Answer 5

energy is in the shell furthest away

Question 6

Electrons can loose energy by…

Answer 6

emitting protons of light

Question 7

Different colours of light have…

Answer 7

different amounts of energy

Question 8

If an electron moves to a shell _____ to the nucleus it must ____ _____. This is emitted as a photon of ___.

Answer 8

closer, loose energy, light

Question 9

If an electron moves to the shell further away from the nucleus it must _____ energy. This energy is _____ by the electron as ______.

Answer 9

gain, absorbed, light.

Question 10

Mass number

Answer 10

the same amount of numbers in the mass are the number of particles in the nucleus

Question 11

Atomic number

Answer 11

the same amount of protons in the nucleus

Question 12

What are Isotopes

Answer 12

Have the same amount of protons. They all have different numbers of neutrons

Question 13

Number of neutrons

Answer 13

mass number - atomic number

Question 14

Atoms have the same number of…

Answer 14

protons and electrons

Question 15

what are Ions

Answer 15

atoms that loose or gain electrons

Question 16

What’s an electrons relative charge?

Answer 16

-1

Question 17

What’s an electrons relative mass?

Answer 17

1/2000

Question 18

Where is an electron in an atom?

Answer 18

Shell

Question 19

What’s a neutrons relative charge?

Answer 19

0

Question 20

What’s an neutrons relative mass?

Answer 20

1

Question 21

Where is a neutron in an atom?

Answer 21

Nucleus

Question 22

What’s the relative charge for a proton?

Answer 22

+1

Question 23

What’s the relative mass for a proton?

Answer 23

1

Question 24

Where’s the Proton in an atom?

Answer 24

Nucleus

Question 25

What’s Radioactive decay?

Answer 25

When an unstable nucleus will emit ionising radiation to become more stable

Question 26

Activity equation

Answer 26

Number of decays/time taken

Question 27

What is Activity measured in?

Answer 27

Becquerels (Bq)

Question 28

Whats an Alpha particle made up of?

Answer 28

2 protons and 2 neutrons. Positively charged particle

Question 29

Whats a Beta particle?

Answer 29

A very fast moving electron. Negatively charged particle

Question 30

What’s a Gamma wave?

Answer 30

An electromagnetic wave