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Science Forum Index » Chemistry Forum » Hypathetical Elements
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| mike |
 Posted: Tue Jan 06, 2004 9:35 pm |
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Hi I am doing a little highschool chemistry and am puzzled. I have an
assorment of hypathetical elements that I need to put into place.
With each I have the EN, density, and melting/boiling point. With any
of these is it possible for me to find the atomic weight?
Thankyou |
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| Cary Kittrell |
| Posted: Wed Jan 07, 2004 6:16 am |
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In article <6b70c71c.0401070652.6ab4f61f@posting.google.com> mark_tarka@yahoo.com (Mark Tarka) writes:
<minneman@charter.net (mike) wrote in message news:<46b3b5ab.0401061835.320f1a42@posting.google.com>...
<> Hi I am doing a little highschool chemistry and am puzzled. I have an
<> assorment of hypathetical elements that I need to put into place.
<> With each I have the EN, density, and melting/boiling point. With any
<> of these is it possible for me to find the atomic weight?
<
<You have my sympathy, hypathetical elements are
<the most difficult to deal with.
<
<With the three properties you have and no more,
<I'd say you can't find the atomic mass directly.
<
You're apparently doing better than I did: what does "EN" stand for?
-- cary |
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| Richard Schultz |
| Posted: Wed Jan 07, 2004 7:07 am |
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In article <10ffa4e4.0401070834.45ae497c@posting.google.com>, dave e <dgenglish@hotmail.com> wrote:
: minneman@charter.net (mike) wrote in message news:<46b3b5ab.0401061835.320f1a42@posting.google.com>...
:> Hi I am doing a little highschool chemistry and am puzzled. I have an
:> assorment of hypathetical elements that I need to put into place.
:> With each I have the EN, density, and melting/boiling point. With any
:> of these is it possible for me to find the atomic weight?
: Yes. You will need to use a reference source like the CRC,
: Webelements.com, or (god forbid) your textbook, which lists the
: elements along with their physical and chemical properties. Once you
: know the name of the element, then you can look up the atomic weight
: from the same reference source.
:
: And be sure to look up the correct spelling of "hypathetical" before
: turning in your final report.
Assuming that EN means "electronegativity," then it should be very easy
for the alert student to narrow the search down even before consulting
the textbook. Thus, if the student is given that the element has
an electronegativity of around 1, it's a pretty safe bet that he should
be looking at the left-hand side of the table. And if he's given that
its melting point is 839 C, he should even be able to make a pretty
shrewd guess of which column it probably is *not* in. The only step
remaining would be to confirm the guess by comparing the given density with
that of the presumed correct answer.
-----
Richard Schultz schultr@mail.biu.ac.il
Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel
Opinions expressed are mine alone, and not those of Bar-Ilan University
-----
"Logic is a wreath of pretty flowers which smell bad." |
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| Mark Tarka |
| Posted: Wed Jan 07, 2004 9:52 am |
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minneman@charter.net (mike) wrote in message news:<46b3b5ab.0401061835.320f1a42@posting.google.com>...
Quote: Hi I am doing a little highschool chemistry and am puzzled. I have an
assorment of hypathetical elements that I need to put into place.
With each I have the EN, density, and melting/boiling point. With any
of these is it possible for me to find the atomic weight?
You have my sympathy, hypathetical elements are
the most difficult to deal with.
With the three properties you have and no more,
I'd say you can't find the atomic mass directly.
Find a web site or school computer with an
interactive periodic table, one that will let
you get plots/trends of the atomic properties
of real elements that are in the catagories you
listed. The next steps are up to you :-)
Mark (Has Canadian beef been banned by countries now that
the U.S. has pointed the finger..."DNA evidence
conclusively shows..."? And are prions showing up
in commercial and retail beef-derived products like
boullion cubes, beef sticks, jerky, soups, broths,
and gravies powdered or liquid? What's the kosher
food industry doing about Mad Cow? What wine would
go well with a plate of medium rare prions? At least
the war is going well, soon we'll be having rampant
diseases amongst the vegans) |
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| dave e |
| Posted: Wed Jan 07, 2004 11:34 am |
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minneman@charter.net (mike) wrote in message news:<46b3b5ab.0401061835.320f1a42@posting.google.com>...
Quote: Hi I am doing a little highschool chemistry and am puzzled. I have an
assorment of hypathetical elements that I need to put into place.
With each I have the EN, density, and melting/boiling point. With any
of these is it possible for me to find the atomic weight?
Thankyou
Yes. You will need to use a reference source like the CRC,
Webelements.com, or (god forbid) your textbook, which lists the
elements along with their physical and chemical properties. Once you
know the name of the element, then you can look up the atomic weight
from the same reference source.
And be sure to look up the correct spelling of "hypathetical" before
turning in your final report.
Dave
Always being helpful. |
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| mike |
| Posted: Wed Jan 07, 2004 9:50 pm |
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cary@afone.as.arizona.edu (Cary Kittrell) wrote in message news:<bthbd9$qjj$1@oasis.ccit.arizona.edu>...
Quote: In article <6b70c71c.0401070652.6ab4f61f@posting.google.com> mark_tarka@yahoo.com (Mark Tarka) writes:
minneman@charter.net (mike) wrote in message news:<46b3b5ab.0401061835.320f1a42@posting.google.com>...
Hi I am doing a little highschool chemistry and am puzzled. I have an
assorment of hypathetical elements that I need to put into place.
With each I have the EN, density, and melting/boiling point. With any
of these is it possible for me to find the atomic weight?
You have my sympathy, hypathetical elements are
the most difficult to deal with.
With the three properties you have and no more,
I'd say you can't find the atomic mass directly.
You're apparently doing better than I did: what does "EN" stand for?
-- cary
electro negativity...thanks for the response |
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