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Noble Gas Notation. A shorthand method of writing electron configuration. Noble Gases. group 18 elements Noble gas configurationthe outer main energy level is fully occupied by 8 electrons. Steps to Write a Noble Gas Notation. write down the symbol of the preceding noble gas (last column)
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Noble Gas Notation A shorthand method of writing electron configuration
Noble Gases • group 18 elements • Noble gas configurationthe outer main energy level is fully occupied by 8 electrons
Steps to Write a Noble Gas Notation • write down the symbol of the preceding noble gas (last column) • Draw brackets around the noble gas symbol like this [Ne] • write the electron configuration starting from there
Practice • Write the noble gas notation for Ca • The preceding noble gas is Ar • Use the periodic table to find the next principal quantum number • [Ar] 4s2
Additional Practice • Write the noble gas notation for Zr • The preceding noble gas is Kr • [Kr] 5s2 4d2 • Write the noble gas notation for Ni • The preceding noble gas is [Ar] • [Ar] 4s2 3d8