MYTUTOR SUBJECT ANSWERS

633 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

12 months ago

Answered by Annabel, a GCSE Chemistry tutor with MyTutor


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

257 SUBJECT SPECIALISTS

£22 /hr

Lucy B.

Degree: Anthropology (Doctorate) - Cambridge University

Subjects offered:Chemistry, Science+ 5 more

Chemistry
Science
Maths
Drama
Biology
-Personal Statements-
-Oxbridge Preparation-

“Enthusiastic Cambridge grad, with experience in Biology and Maths, passionate about helping students reach their potential and achieve the grades they deserve. ”

MyTutor guarantee

£20 /hr

George N.

Degree: Chemistry (Masters) - York University

Subjects offered:Chemistry, Physics

Chemistry
Physics

“20 year old second year chemistry student at the University of York. Drummer, guitarist, rugby player and radio host who has experience and a love for tutoring.”

£18 /hr

Praveenaa K.

Degree: Mathematics (Masters) - Bristol University

Subjects offered:Chemistry, Science+ 4 more

Chemistry
Science
Maths
Further Mathematics
English
-Personal Statements-

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

About the author

Annabel W. GCSE Maths tutor, A Level Maths tutor, GCSE Chemistry tutor
£20 /hr

Annabel W.

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 can Diamond and Graphite both be made of carbon but be so different?

Define what 1 mole is

Why can ammonium sulfate be described as a salt?

How can I check if my reaction equations are correct?

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