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Zinc

Discussion board (posts 321-340)

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E-mail address ash - 10/12/2006 6:33:58 PM

hey wats up ppl i need to know about zinc so let me no bout mkay? thnx much!!!

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E-mail address mayra - 10/11/2006 7:19:01 AM

what is the brightness of zinc???

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E-mail address Emerald - 10/10/2006 1:48:20 AM

What's a good slogan for zinc?

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sean - 10/10/2006 1:18:33 AM

  kevin - 10/2/2006 11:20:31 PM
  who discovered it and when

Andreas Marggraf, 1746

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E-mail address maya - 10/9/2006 8:38:45 PM

what is the cost and the family name of zinc???

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grace - 10/8/2006 3:52:23 PM

i need to now when zinc was discoverd

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Taylor - 10/7/2006 10:10:39 PM

  E-mail address ashley - 10/5/2006 10:27:58 PM
  how did Zinc get its name?

From the German word Zin

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E-mail address becca - 10/6/2006 5:16:37 AM

I need to know some chemical properties for zinc quick!!

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E-mail address ashley - 10/5/2006 10:27:58 PM

how did Zinc get its name?

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E-mail address HAILEY - 10/4/2006 10:22:08 PM

  E-mail address HAILEY - 10/4/2006 9:53:00 PM
  i need 2 know the family of zinc and 5 facts fast

i need to know how zinc was discovered

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E-mail address HAILEY - 10/4/2006 9:53:00 PM

i need 2 know the family of zinc and 5 facts fast

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mariah - 10/3/2006 2:46:17 AM

how was zinc discoverd

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kevin - 10/2/2006 11:20:31 PM

who discovered it and when

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E-mail address s91airforce@aol.com - 10/1/2006 11:29:35 PM

Whats a good slogan for zinc? someone reply for me soon..thanks alot

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E-mail address poison ivy - 10/1/2006 7:30:55 AM


Name: Zinc
Symbol: Zn
Atomic Number: 30
Atomic Mass: 65.39 amu
Melting Point: 419.58 ˇăC (692.73 K, 787.24396 ˇăF)
Boiling Point: 907.0 ˇăC (1180.15 K, 1664.6 ˇăF)
Number of Protons/Electrons: 30
Number of Neutrons: 35
Classification: Transition Metal
Crystal Structure: Hexagonal
Density @ 293 K: 7.133 g/cm3
Color: bluish



Atomic Structure

Number of Energy Levels: 4

First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 18
Fourth Energy Level: 2


Isotopes
Isotope Half Life
Zn-62 9.26 hours
Zn-63 38.5 minutes
Zn-64 Stable
Zn-65 243.8 days
Zn-66 Stable
Zn-67 Stable
Zn-68 Stable
Zn-69m 13.76 hours
Zn-70 Stable
Zn-72 46.5 hours


Facts

Date of Discovery: 1746
Discoverer: Andreas Marggraf
Name Origin: From the German word zin (meaning tin)
Uses: metal coating, rust protection, brass, bronze, nickel

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E-mail address poison ivy - 10/1/2006 7:15:00 AM

melting point:419ˇŁ53
zinc is used as part of the containers of batteries

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Jacob - 9/30/2006 11:04:53 PM

Element Name - Zinc

Element Symbol - Zn

Atomic Number - 30

Group number and Group name - Group 12, No group name

Number of Valence Electrons - 2

Thee uses for Zinc - To make wires, Thin sheets are used to protect iron from corroding, and is an essential element in the growth of all animals and plants.

Where Zinc is found - In every cell of the human body, there is an estimated 0.004% amound of zinc in the earths crust.

Physical properties of Zinc -
a) boiling point - 907C
b) melting point - 419.53C
c) state of matter at room temperature - Solid
d) is it malleable? - yes, at 100 to 150C
E) conductivity - reasonably good conductor of electricity

Who discovered zinc - Andreas Marggraf

How zinc got its name - Named after the german word, "zink" meaning metal

Natural isotopes of zinc - Zn-64, Zn-66, Zn-67, Zn-68, and Zn-70

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E-mail address elizabeth sitkovetsky - 9/30/2006 7:40:30 PM

how did it get its name

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E-mail address beth - 9/29/2006 12:26:44 PM

where did andreas live ? and where did she orgianate from ?

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E-mail address beth - 9/29/2006 12:25:53 PM

was andreas a man or a woman ?

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