Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    I really need help on this question explain why the relative atomic masses of some elemnts are not exact whole numbers
    Offline

    19
    ReputationRep:
    Key word: relative.
    Offline

    11
    ReputationRep:
    Not really. Keyword is atomic.

    Relative isotopic refers to......"of one isotope"

    Atomic refers to "average mass".....

    NB. Full definitions not stated above. OP suggested to find out for sure.
    Offline

    19
    ReputationRep:
    (Original post by shengoc)
    Not really. Keyword is atomic.

    Relative isotopic refers to......"of one isotope"

    Atomic refers to "average mass".....

    NB. Full definitions not stated above. OP suggested to find out for sure.

    No.

    The only isotope with an integer relative isotopic mass is 12C.
    Offline

    11
    ReputationRep:
    (Original post by alow)
    No.

    The only isotope with an integer relative isotopic mass is 12C.
    I do stand corrected. Apology indeed. We usually simplify things in school to make it slightly more convenient for most students to get the difference especially when doing those differences question.😊
 
 
 
The home of Results and Clearing

2,556

people online now

1,567,000

students helped last year

University open days

  1. SAE Institute
    Animation, Audio, Film, Games, Music, Business, Web Further education
    Thu, 16 Aug '18
  2. Bournemouth University
    Clearing Open Day Undergraduate
    Fri, 17 Aug '18
  3. University of Bolton
    Undergraduate Open Day Undergraduate
    Fri, 17 Aug '18
Poll
Do you want your parents to be with you when you collect your A-level results?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.