Lecture 5 - The Periodic Table...

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

View Full Document Right Arrow Icon
The Periodic Table http://www.privatehand.com/flash/elements.html http://periodictable.com/ http://education.jlab.org/itselemental/index.html
Background image of page 1

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

View Full DocumentRight Arrow Icon
Chemical Properties of Groups in Periodic Table Group 1 (1A), Alkali metals: shiny, soft metals React rapidly with water Never found in nature in pure state Group 2 (2A), Alkaline earth metals Lustrous silvery metals Never found in nature in pure state Group 17 (7A), Halogens Colorful, corrosive nonmetals Found in nature only in combination with other elements Group 18 (8A), Noble Gases Gases Low reactivity (inert)
Background image of page 2
Chemical Properties Metals All except Hg are solid at room temperature Shiny, malleable and ductile Good conductors of heat and electricity Nonmetals 11: gases, 1: liquid (Br), and 5: solids at room temp Brittle Poor conductors of heat and electricity Molecules in human body and polymers consist primarily of nonmetallic elements Semi-metals (metalloids) Intermediate between those of metals and nonmetals Solid at room temperature
Background image of page 3

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

View Full DocumentRight Arrow Icon
Periodic Table
Background image of page 4
Ions are formed when the number of protons and electrons in an atom are not equal. Ions with more protons than electrons are called cations . (Na + ) Ions with more electrons that protons are called anions . (Cl - ) Monoatomic Cations (Metal): Lose electrons positive charge: equal to Group Number of element
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 08/29/2010 for the course CHM 2045 taught by Professor Brant during the Fall '08 term at University of South Florida - Tampa.

Page1 / 25

Lecture 5 - The Periodic Table...

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