Symbols and formulas

Dr Sharipah Ruzaina Syed Aris Symbols, formula, Periodic Table, Avogadro number

Symbols: Abbreviations for the chemical elements

Atomic Symbols, Isotopes, Numbers X = Atomic symbol of the element A = mass number; A = Z + N Isotope = atoms of an element with the same number of protons, but a different number of neutrons A Z Z = atomic number (the number of protons in the nucleus) N = number of neutrons in the nucleus X The Symbol of the Atom or Isotope

[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],Note: Placement of elements 58 – 71 and 90 – 103 saves space

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],n = mass/molecular weight

Symbols and formulas

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