Noun
nonmetal- an element, such as phosphorus or chlorine, that does not have the chemical or physical properties of a metal
nonmetal
Read full definition at wiktionary.org
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Non-Metal Multi-Colored...
. Decorate your wrist with this lush multi-colored cultured freshwater pearl... More |
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Non-Metal Multi-Colored...
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...The elements generally regarded as nonmetals are:
- hydrogen (H)
- In Group 14: carbon (C)
- In Group 15(the pnictogens): nitrogen (N), phosphorus (P)
- Several elements in Group 16, the chalcogens: oxygen (O), sulfur (S), selenium (Se)
- All elements in Group 17 (Exept for Astatine) - the halogens
- All elements in Group 18 - the noble gases Read full entry
This entry is from Wikipedia,the leading user-contributed encyclopedia.It may not have been reviewed by professional editors(See full disclaimer)
- 1.Nonmetal - Wikipedia, the free encyclopedia
- Nonmetal, or non-metal, is a term used in chemistry when classifying the chemical ... Common properties considered characteristic of a nonmetal include: ...
- http://en.wikipedia.org/wiki/N
onmetal
- 2.nonmetal: Definition from Answers.com
- nonmetal n. Any of a number of elements, such as oxygen or sulfur, that ... Nonmetal, or non-metal, is a term used in chemistry when classifying the chemical ...
- http://www.answers.com/topic/n
onmetal
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What nonmetal element is used Or maybe which nonmetal is
most interesting?I have to do
a 2 page research and a Power
Point Presentation. I need to
present the basic history and
the chemistry of the element.
Help would be greatly
appreciated, thanks.
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You should use Nitrogen, for its properties contribute to life saving medicines, poisons, DNA, the list could go on and on. |
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How do you tell whats a metal How do you tell whats a metal,
nonmetal, or gas on a periodic
table with no colours?
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The answer is: you don't. You can't just tell by glancing what is or isn't metallic anyway. Starting on the left, everything is metallic all the way over to boron, except hydrogen. Then there is a stairstep down the main group elements. Boron is not a metal, but aluminum and the things under aluminum in that column are. Basically, the diagonal line from aluminum to germanium to antimony to polonium and the elements under those elements are metals. There is no good way to tell this without having learned it in advance from a colored table, sorry. Ditto with radioactivity, gaseousness, liquidity, and a few other properties. I mean, who would guess that technetium is radioactive when nothing else remotely close to it is? Who would intuit naturally that mercury or bromine would be liquids at STP? Or hydrogen a gas? |
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Why is the first ionization 1. Why is the first ionization
energy of a nonmetal much
higher than that of an alkali
metal?
Also if you know, describe the
trend in ionization energy as
you go down a group?
And if you know this, describe
the trend in ionization energy
as you go across a period?
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As you go across the periodic table the energy increases and as you go down the energy decreases |
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