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NAMING ELEMENTS

NAMING ELEMENTS. The chemical symbol and the name of the elements must be known before starting any discussion in chemistry. There is a correlation between the name and the chemical symbol. The chemical symbol is usually the first or the first and second letter of the name.

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NAMING ELEMENTS

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  1. NAMING ELEMENTS The chemical symbol and the name of the elements must be known before starting any discussion in chemistry. There is a correlation between the name and the chemical symbol. • The chemical symbol is usually the first or the first and second letter of the name. H stands for the hydrogen atom He is helium Li is lithium • Or it could be the first and third letter Mg is magnesium Mn is manganese • Or it could be the letters for the “Old” (Latin, Greek, etc.) name Fe is iron (ferrum: latin) Cu is copper (cuprum)

  2. NAMES OF ELEMENTS TO KNOW H = hydrogen atom Si = silicon Ag = silver He = helium P = phosphorus Sn = tin Li = lithium S = sulfur Zn = zinc Be = beryllium Cl = chlorine Ar = Argon B = boron Ba = barium Ni = nickel C = carbon K = potassium (kalium) Pb = lead N = nitrogen atom Ca = calcium Xe = xenon O = oxygen atom Cr = chromium Au = gold F = fluorine atom Fe = iron (ferrum) Ne = neon Hg = mercury Na = sodium (natrium) Cu = copper (cuprum) Mg = magnesium I = iodine atom Al = aluminum Br = bromine atom

  3. NAMING ELEMENTS • There are 7 homonuclear diatomic elements. These elements do not exist “alone” readily under the conditions experienced on the surface of the Earth. H - hydrogen atom H2 - hydrogen N - nitrogen atom N2 - nitrogen O - oxygen atom O2 - oxygen F - fluorine atom F2 - fluorine Cl - chlorine atom Cl2 - chlorine Br - bromine atom Br2 - bromine I - iodine atom I2 - iodine You must be extra careful (& specific) when naming these elements

  4. NAMING ELEMENTS PRACTICE PROBLEMS • Name the following elements or give the appropriate symbol: • _____ S _____ calcium _____ Co • _____ Ar _____ oxygen _____ C • _____ P _____ aluminum _____ Zn • _____ Cu _____ sodium _____ Br • _____ B _____ iron _____ Hg • _____ Mg _____ potassium _____ Au Ca cobalt sulfur O2 argon carbon phosphorus Al zinc copper Na Bromine atom Fe boron mercury K magnesium gold

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