Isotopes

What the syllabus asks of you

• Define isotopes as different atoms of the same 3 State that isotopes of the same element element that have the same number of protons have the same chemical properties because but different numbers of neutrons they have the same number of electrons and
• Interpret and use symbols for atoms, e.g. 6 and ions, e.g. 17 35Cl – 12C, therefore the same electronic configuration 4 Calculate the relative atomic mass of an element from the relative masses and abundances of its isotopes