CH8(7-9)Nov5FA08a

CH8(7-9)Nov5FA08a - University of Nebraska Department of...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
University of Nebraska Department of Chemistry FALL 2008 Announcements: Exam 3 next week
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Periodic Properties All physical and chemical behavior of the elements is based ultimately on the electron configurations of their atoms. We will look primarily at the following characteristics: Atomic size (radius) Ionization energy Electron affinity These properties are periodic – they generally increase and decrease in a recurring manner throughout the periodic table
Background image of page 2
As a consequence of the ordering in the periodic table, properties of elements vary periodically . As we move down a group, the atoms become __________ . As we move across a period, atoms become ________ . There are two factors at work: _____________________, and _________________________ Trends in Atomic Size
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Atomic Radii (or size) For the main group elements , the atomic radius of atoms increases going top to bottom and decreases going left to right on the periodic table. ____ is the largest element, ____ is the smallest Going down a group, n increases so adding __________, thus the atoms are larger Going across a period, n is constant , but addition of electrons, protons and neutrons result in an
Background image of page 4
Atomic Radii The left to right trends on the previous slide works well for main group elements For _________ elements , the inner d orbitals are filled so -
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/22/2009 for the course CHEM 109 taught by Professor Hart during the Spring '09 term at Nebraska Christian.

Page1 / 17

CH8(7-9)Nov5FA08a - University of Nebraska Department of...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online