Chapter 6 Notes Book chapter 4-3. I. Properties of Metals and Nonmetals -Physical Prop of metals 1....
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Transcript of Chapter 6 Notes Book chapter 4-3. I. Properties of Metals and Nonmetals -Physical Prop of metals 1....
![Page 1: Chapter 6 Notes Book chapter 4-3. I. Properties of Metals and Nonmetals -Physical Prop of metals 1. *Luster: shininess 2. Good conductor of heat and electricity.](https://reader036.fdocuments.in/reader036/viewer/2022062517/56649f0e5503460f94c22f35/html5/thumbnails/1.jpg)
Chapter 6 Notes
Book chapter 4-3
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I. Properties of Metals and Nonmetals
-Physical Prop of metals1. *Luster:
shininess2. Good conductor of heat and electricity3. High density
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4. High melting point
5. Ductile
6. Malleable
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-Chem Prop of Metals
1. *Corrosive:
wearing away of metal
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-Alloy
*A mixture of two elements – both metals, or a metal and a nonmetal – that has properties of a metal.
ex: stainless steel, Brass
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-Physical Properties of Nonmetals
1. Not as easy to recognize as a group.
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-Chem Prop of Nonmetals
1. Tend to gain e-
-Metalloids
1. Display prop of both
2. All are solid
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II. Active Metals
-most found in Group 1 and 2
*Combustion:
___ + O2 ----> CO2 + H2O
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-Alkali Metals
*Elements in Group 1
-most reactive of all metals
-never found(nature)as free elem
-Rxn with water produces a base
-one e- in outermost nrg level
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-Alkaline Earth Metals
*elements in Group 2-reactive-harder and denser-never found free in nature-combine to make alloys-two e- in outermost nrg level
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Flame Test ----Group 1 reactivityhttp://www.youtube.com/watch?v=QNojS6ZZ4og
http://www.youtube.com/watch?v=jJvS4uc4TbU
http://profmokeur.ca/chemistry/
http://www.youtube.com/watch?v=eCk0lYB_8c0&feature=related
http://www.youtube.com/watch?v=Ft4E1eCUItI&feature=related
Na Noteshttp://www.youtube.com/watch?v=9O7kJLTa9Sg
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III. Transition Metals
*Between Group 3 -12
-properties don’t seem to fit any other
-much less reactive
-brittle; brightly colored
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IV. Nonmetals
*Groups 13-18
-Boron Family
*Group 13
-3valence e-
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-Carbon Family
*Group 14
-4 valence e-
*Organic compound:
anything that contains C
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-Nitrogen Family
*Group 15
-five e- in outermost nrg level
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-Oxygen Family
*Group 16
-have six e- in outermost nrg level
-oxygen, very reactive and combines with almost every other element(supports combustion)
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V. Halogens
*Group 17
*Greeks “halogens”
= Salt formers
-strongly nonmetallic
-gain e- and form neg. ions
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-most active nonmetals-never found free in nature-7 valence e--all diatomic elements
but not “At”
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VI. Noble Gases
*Group 18
*Inert:
don’t readily combine with other elements
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VII. Rare-Earth Elements
*Two rows at the bottom of the chart.
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1. First Row
*Lanthanoid series:
soft, malleable metals, high luster, high conductivity
-used to make alloys and high-quality glass
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2. Second Row
*Actinoid Series:
radioactive, synthetic
-best known is uranium