MYTUTOR SUBJECT ANSWERS

426 views

Explain what is meant by the term isotope

An atom is made up of 3 different types of sub-atomic particles (just the name for particles that are inside the atom). 

The nucleus, the 'ball' in the middle of the atom where almost all it's mass is found, is made up of protons and neutrons. Electrons circle this nucleus. The number of protons in an atom always equals the number of electrons in that atom. It is this number that defines what the atom is - whether it is gold, or oxygen, or calcium and so on. 

The number of neutrons in an atom will be roughly the same if not equal to the number of protons. Importantly though, changing the number of neutrons in an atom doesn't change what element the atom is. Therefore, we could play around with the number of neutrons in an atom of gold, and as long as we didn't change the number of protons, it would still be am atom of gold. We would be creating different isotopes of gold if we did this. 

Isotopes are atoms of the same element with different numbers of neutrons. 

Therefore isotopes differ in relative atomic mass, but have the same chemical properties, because neutrons have nothing to do with how an atom reacts (it's down to the electrons). 

Annabel W. GCSE Maths tutor, A Level Maths tutor, GCSE Chemistry tutor

9 months ago

Answered by Annabel, a GCSE Chemistry tutor with MyTutor


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

228 SUBJECT SPECIALISTS

£18 /hr

Matt E.

Degree: Molecular Biology (Doctorate) - Queen's, Belfast University

Subjects offered:Chemistry, Science+ 4 more

Chemistry
Science
Maths
Human Biology
-Personal Statements-

“I am a first year PhD student at the School of Biological Sciences at Queen's University, Belfast, having graduated with a first class honours degree in Biology from QUB. My research focuses on the molecular mechanisms underpinning th...”

MyTutor guarantee

£20 /hr

Teresa B.

Degree: Anatomy (Bachelors) - Glasgow University

Subjects offered:Chemistry, Spanish+ 3 more

Chemistry
Spanish
French
Biology
-Personal Statements-

“Since the dawn of time, I've been talking to people about things I love and enjoy. How cliché, I know. But don't roll your eyes at me yet. Hear me out: ...”

£22 /hr

Julia M.

Degree: Sustainable Agriculture and Food Security (Masters) - Edinburgh University

Subjects offered:Chemistry, Maths+ 1 more

Chemistry
Maths
Biology

“Enthusiastic friendly tutor looking for curious and ambitious students for fun and relaxed lessons”

About the author

Annabel W. GCSE Maths tutor, A Level Maths tutor, GCSE Chemistry tutor

Annabel W.

Currently unavailable: for regular students

Degree: Mathematics (Masters) - Durham University

Subjects offered:Chemistry, Maths

Chemistry
Maths

“Hi! I'm Annie, a first year Mathematics student studying a Durham University. If you're looking for support in your studies in Maths or Chemistry, I'm here to help! I'm very enthusiastic about helping others to learn and progress, and ...”

You may also like...

Posts by Annabel

Explain what is meant by the term isotope

Given x = 3tan(2y) find dy/dx in terms of x

Solve 3x^2 = 8x - 2 giving your answers to 2 d.p.

Other GCSE Chemistry questions

How do you make calcium hydroxide (Ca(OH)2) from Calcium carbonate (CaCO3) and what are the equations.

how do emulsifier molecules able to produce an emulsion that is a stable mixture containing vegetable oil and water?

What is the equation for complete combustion and what does it require?

The relative formula mass of CaO is 56 and the relative formula mass of CO2 is 44. What is the mass of CaO that can be obtained from 200 g of CaCO3. CaO3 -> CaO + CO2

View GCSE Chemistry tutors

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

mtw:mercury1:status:ok