{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

the noble gases inert gases which do not have any

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: gases which do not have any chemical reactivity) elements with outermost s and p sublevels which are full. ) Representative Elements (columns 1,2,13-17) elements that partially filled outermost s and p sublevels 3) Transition Elements (all metals except columns 1 and 2) elements whose outermost s and nearby d sublevels contain electrons 4) Inner Transition Elements (elements at the bottom of the periodic table) elements whose outermost s and nearby f sublevel generally contain electrons Writing electron configurations the easy way Yes there is a shorthand Electron Configurations repeat The shape of the periodic table is a representation of this repetition. When we get to the end of the column the outermost energy level is full. This is the basis for our shorthand. Write symbol of the noble gas before the element, in [ ]. Then, the rest of the electrons. Aluminum's full configuration: The Shorthand previous noble gas Ne is: 1s22s22p6 so, Al is: [Ne] 3s23p1 1s22s22p63s23p1 More examples Ge = 1s22s22p63s23p64s23d104p2 Hf = 1s22s22p63s23p64s23d104p65s2 4d105p66s24f145d2 Thus, Hf = [Xe]6s24f145d2 Thus, Ge = [Ar] 4s23d104p2 The Shorthand Again Sn- 50 electrons The noble gas before it is Kr Takes care of 36 Next 5s2 Then 4d10 Finally 5p2 [ Kr ] 5s2 4d10 5p2 Trends in Atomic Size First problem: Where do you start measuring from? The electron cloud doesn't have a definite edge. They get around this by measuring more than 1 atom at a time....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern