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Alchemy Unit – Investigation III. Lesson 6: Go Figure. Noble Gas Electron Configuration 10 / 21 / 13. The noble gas electron configuration of an element starts with the noble gas that comes before the element in brackets and then continues from there to the element.
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Alchemy Unit – Investigation III Lesson 6: Go Figure
Noble Gas Electron Configuration 10/21/13 • The noble gas electron configuration of an element starts with the noble gas that comes before the element in brackets and then continues from there to the element. ex:For the element Ca, that would be [Ar]4s2 • The valence electrons are the highest level electrons. For example, if the configuration is [Kr]5s24d105p4 , the valence electrons are 5s25p4 because shell 5 is higher than shell 4. Unit 1 • Investigation III
Homework Review P: 1s22s22p63s23p3 Ni: 1s22s22p63s23p64s23d8 Au: 1s22s22p63s23p64s23d104p65s24d105p6 6s24f155d8 (or 4f145d9) 3. Chlorine, bromine, and iodine all have similar groups of valence electrons, 3s23p5, 4s24p5, 5s25p5 which makes sense because they are all halogens in column 7 that will have 7 valence e-. Unit 1 • Investigation III
Homework Review Unit 1 • Investigation III