CHE_106_Lecture18_2009

CHE_106_Lecture18_2009 - Chemistry 106 Lecture 18 Topics:...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 106 Lecture 18 Topics: Metals onmetals Nonmetals Metalloids Chapter 7.6-7.8
Background image of page 1

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

View Full DocumentRight Arrow Icon
The Main-Group Elements The physical and chemical properties of the main-group elements clearly display periodic behavior. Variations of metallic-nonmetallic character are periodic. (More metal–like as you go down a group.)
Background image of page 2
Properties of Metal, Nonmetals, and Metalloids
Background image of page 3

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

View Full DocumentRight Arrow Icon
Metals vs. Nonmetals Differences between metals and nonmetals tend to revolve around these properties.
Background image of page 4
Metals vs. Nonmetals Metals tend to form cations (+). Nonmetals tend to form anions (-).
Background image of page 5

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

View Full DocumentRight Arrow Icon
First Ionization Energies of Metals vs. Nonmetals The first ionization energies for metals are much lower than those of nonmetals. Since it is easy to remove electrons from metals, they tend to form cations (+) . METALS NONMETALS
Background image of page 6
Metals They tend to be lustrous (shiny), malleable (sheets), uctile (wires), d ductile (wires), and good conductors of heat and electricity.
Background image of page 7

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

View Full DocumentRight Arrow Icon
Metals Compounds formed between metals and nonmetals tend to be ionic . Most metal oxides function Nitric Acid Water iO ickel oxide) as bases . NiO (Nickel oxide) Metal oxide + acid → salt + water NiO( s ) + 2HNO 3 ( aq ) → Ni(NO 3 ) 2 ( aq ) + H 2 O( l )
Background image of page 8
These are dull, brittle substances that are poor conductors of heat and electricity. ey tend to gain They tend to gain electrons in reactions with metals to acquire a noble gas configuration. Nonmetals tend to have very negative electron affinities
Background image of page 9

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

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 31

CHE_106_Lecture18_2009 - Chemistry 106 Lecture 18 Topics:...

This preview shows document pages 1 - 10. Sign up to view the full document.

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