MYTUTOR SUBJECT ANSWERS

88 views

A sample of pure gold has a density of 19300 kgm^-3. If the density of a gold nucleus is 1.47x10^17Kgm^-3, discuss what this implies about the structure of the gold atom. [4 marks]

To gain all of the marks, 4 different points must be made. To begin, state what is obvious:

The density of the gold nucleus is much greater than the density of the gold atom.

The next step is to discuss what this means. As the gold nucleus is inside of the gold atom, this implies that the majority of the mass of the atom is concentrated within the nucleus.As density is mass per unit volume, a high density but a small mass shows that the volume must be incredibly small. This shows the nucleus is small compared to the size of the atom.And finally, this shows that the atom contains a lot of empty space.

Rebecca L. GCSE Maths tutor, A Level Maths tutor, GCSE Physics tutor,...

3 months ago

Answered by Rebecca, an A Level Physics tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

48 SUBJECT SPECIALISTS

£24 /hr

Nathan L.

Degree: Materials Science (Masters) - Oxford, St Edmund Hall University

Subjects offered: Physics, Maths+ 1 more

Physics
Maths
Chemistry

“About Me: I'm a first year Materials science undergraduate at The University of Oxford. I loved learning about science and maths at school and hope my tutorials make you feel the same.  Structure: The key concept about tutorials i...”

£20 /hr

James S.

Degree: MPhys (Masters) - Edinburgh University

Subjects offered: Physics, Maths+ 2 more

Physics
Maths
Chemistry
Biology

“About me: I am a third-year physics student at the University of Edinburgh. I have always been passionate about the sciences; including biology and chemistry in conjunction with physics. I love having the opportunity to help and meet ...”

MyTutor guarantee

£20 /hr

Harry M.

Degree: Physics (Masters) - Exeter University

Subjects offered: Physics, Maths

Physics
Maths

“Hey everyone,If you're reading this, then I assume you're stuck on something physics-y or maths-y. If so, thenI can help! I'm a Physics student at Exeter University and I can be your guru. Physics reduces the complex world to somethi...”

About the author

Rebecca L.

Currently unavailable: for regular students

Degree: Physics (Bachelors) - Manchester University

Subjects offered: Physics, Maths+ 1 more

Physics
Maths
Chemistry

“I am studying physics at the University of Manchester. I have been involved in volunteering to organise events for elderly people within my local community. As well as this I have aided in delivering workshops to schools in my local a...”

MyTutor guarantee

You may also like...

Other A Level Physics questions

What is "half-life"?

A given star has a peak emission wavelength of 60nm, lies 7.10*10^19m away and the intensity of its electromagnetic radiation reaching the Earth is 3.33*10^-8Wm^-2. Calculate the star's diameter

Is Pluto a planet?

Why can't you hear any noise in space?

View A Level Physics tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok