EASY
MYP:4-5
IMPORTANT
Earn 100

The target nucleus in the experiment was gold which has a mass number of 197 and an atomic number of 79.

Describe this nucleus in atomic notation. (The chemical symbol for gold is Au.)

Important Questions on Models

EASY
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 3

The target nucleus in the experiment was gold which has a mass number of 197 and an atomic number of 79.

How many neutrons are in the gold nucleus ?

EASY
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 4
Another isotope of gold has a mass number of 200. Explain what is meant by an isotope and how these nuclei differ from the gold-197 nuclei.
EASY
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 5
Explain why the two gold isotopes have similar chemical properties.
EASY
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 6
The electrons waves are transverse. Describe the difference between a transverse wave and a longitudinal wave.
MEDIUM
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 7

A series of experiments is designed to investigate other nuclear radii.

Explain which of the following you think would be the most suitable independent variable for the experiment :

atomic number, mass number, number of electrons.

EASY
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 8

A series of experiments is designed to investigate other nuclear radii.

Write a suitable hypothesis for this experiment.

MEDIUM
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 9

A series of experiments is designed to investigate other nuclear radii.

One suggestion is to investigate and measure the different radii of the isotopes of gold. Discuss whether this is a good suggestion.

MEDIUM
MYP:4-5
IMPORTANT
MYP Physics A concept-based approach Years 4&5>Chapter 1 - Models>Summative assessment>Q 10
Explain why it might be important to use the same wavelength of electrons when measuring the differing nuclei.