Isotopes

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  • A nuclide map
    News

    73 new isotopes discovered

    15 June 2018

    Use this cutting edge nuclide research in your class

  • Capital Greek letter sigma, in neon
    Maths

    Summation and the sigma notation

    14 September 2017

    Paul Yates applies this handy shorthand to chemistry calculations in mass and enthalpy

  • Modern day alchemists making elements 2
    Feature

    Modern-day alchemists

    17 October 2016

    Sam Tracey visits Lawrence Berkeley National Laboratory to find out how to make a new element

  • Fruit on an olive tree
    Elements

    Boron

    3 July 2014

    John Emsley looks at the element that links olive trees with semiconductors

  • The Visual Elements symbol for holmium
    Elements

    Holmium

    6 March 2014

    When it comes to powerful magnets, nothing beats holmium. John Emsley investigates

  • 0313EiC_Element_pg012_180
    Elements

    Neon

    1 May 2013

    John Emsley looks at the element that shines brightly and keeps cool but continues to puzzle

  • The-Elements_pg013_250
    Elements

    Lithium

    1 November 2012

    John Emsley investigates the element that is the lightest of metals and celebrated in song

  • p134_Image1_350
    News

    Periodic table of the isotopes launched by IUPAC

    1 September 2011

    IUPAC has launched a new periodic table which emphasises isotopic composition

  • image - Features - Habashi - main
    Feature

    Ida Noddack and the missing elements

    1 March 2009

    Distinguished women chemists were rare in the early 20th century, but their contributions to chemistry are of great significance. Ida Noddack's scientific career centred around her intensive study of the Periodic Table, and resulted in her discovery, with husband Walter Noddack and physicist Otto Berg, of the metal rhenium, and ...