Periodic Table of the Elements
Menu
Periodic Table
Link to us
Contact

Search


 

Astatine

Discussion board

>> Back to key information about the element

Name:
E-mail:
Text:
Please rewrite this verification code:
 
 
 


E-mail address Ezekiel chima - 5/5/2014 7:20:56 PM

  E-mail address Ezekiel chima - 5/5/2014 7:20:15 PM
  There is no accurate price.

it is man-made used to treat cancer.

  Reply

E-mail address Ezekiel chima - 5/5/2014 7:20:15 PM

  E-mail address jordan - 10/7/2008 5:37:58 PM
  do you know the cost of astatine

There is no accurate price.

  Reply

E-mail address Ezekiel chima - 5/5/2014 7:18:36 PM

  E-mail address Sherita - 10/11/2007 1:48:43 AM
  What is the family name or rare earth element series of astatine.

It is Halogen.

  Reply

E-mail address jordan - 10/7/2008 5:37:58 PM

do you know the cost of astatine

  Reply

E-mail address ididaprojectonitok - 4/1/2008 4:27:35 AM

Since astatine has an extremely short life span, astatine has no practical use other than scientific study. the isotope 211 of astatine is used for treating different types of tumors. Some researchers think that astatine will behave like iodine. If so, it could be used to treat certain diseases of the thyroid, such as thyroid cancer. When swallowed, the astatine would go to the thyroid. There, the radiation it gives off would kill cancer cells in the gland.

The Basics:

Atomic Mass: 210 amu

Atomic Number: 85

Discovered by: Produced by Dale R. Carson, K.R.
MacKenzie, and Emilio Segré by bombarding an isotope of bismuth with alpha particles.

Discovered in: 1940, at the University of California.

Name Origin: From the Greek word for unstable, astatos.

Natural State: Solid

Melting Point: 575K (302oC, 579oF)
Boiling Point: Assumed around 610K (337oC, 639oF)

Freezing Point: unknown

Density: unknown

Belongs to group: Halogen

Group, Period, Block: 17, 6, p

Isotopes: Astatine has 33 known isotopes, all of which are radioactive. The range of their mass numbers is from 191 to 223. There also exists 23 metastable excited states. Astatine's most stable isotope, astatine-210, has a half-life of 8.1 hours. The shortest-lived known isotope is astatine-213, which has a half-life of 125 nanoseconds.

Characteristics: Appearance presumed as black. It is the heaviest known halogen, and its chemical properties are thought to be similar to those of iodine, although it is more metallic than iodine. It is a metalloid, a decay element, and its crystal structure is unknown. Following the color trends of halogens, the elements get darker in color. Astatine is expected to be a nearly black solid, which, when heated, evaporates into a dark, purplish vapor.

Interesting Facts: Guinness World Record has dubbed astatine the rarest element on Earth.

  Reply

freakynews - 1/16/2008 11:31:14 PM

I'm also doing a project on astatine, and I found in a Britannica that it collects in the thyroid gland (?) and has been proposed to treat hyperthyroidism (whatever that is). Hope that helps. by the way, it was an old book

  Reply

E-mail address Lily - 1/10/2008 8:31:58 PM

Astatine is sometimes used as a radioactive tracer, like iodine it collects in the thyroid gland.

  Reply

jake c. - 12/27/2007 10:02:49 PM

what's astatine used in ? please i really need to know for a project.

  Reply

jake c. - 12/27/2007 9:44:54 PM

what's astatine used in?

  Reply

E-mail address Lucy - 12/3/2007 7:57:42 PM

What are the uses of astatine?

  Reply

E-mail address Sherita - 10/11/2007 1:48:43 AM

What is the family name or rare earth element series of astatine.

  Reply

E-mail address rachel - 10/4/2006 11:42:46 PM

what is astatine used for? i have no idea! can u please help me?

  Reply

E-mail address The real truth.. - 3/10/2006 11:07:33 PM

  E-mail address Kayla - 1/9/2006 8:09:58 AM
  ok like ik this is really pissing me off i have a huge paper due tomarro and its 1:09am and its due second period!!!!! and i have 3/4 of a page writeen!!!!!! damn im secrewed!!!! HELP ME

sadly lauren. those uses are incorrect...well mostly incorrect. you see, there is such little astatine they can't really use it for anything besides what it is already is like the earth's core and a small ammount is in owls eyes. but it also cannot be used for much because it is radioactive and very very rare. it's also very unstable so it mixes with other elements faster than it has time to stay on it's own. plus astatines "life" is very brief and does not last long.
well. that's about it.

  Reply

E-mail address I''m quite the Genius. - 3/10/2006 8:33:08 PM

Other info about Astatine would be..
1. it's the rarest element on earth. only 0.9 oz's of the element occurs naturally in the earths core.
2. an earlier name for the element was Alabamine
3. the only radioactive halogen
4. it's metallic
5. it's solid at room temperature.
6. 85 protons, 25 neutrons, 85 electrons.
7. the electrons go in this order ( 2,8,18,32,18,7) so it has 6 energy levels. the last 7 electrons are it's valence electrons.

  Reply

E-mail address I''m quite the Genius. - 3/10/2006 8:26:24 PM

if you think Astatine is a hard to find element... try finding out about Ununtrium (element 113). it doesn't even have a real given name. so stop all your complaining about Astatine and try researching unknown elements. trust me it's way harder.

  Reply

E-mail address I'm quite the Genius. - 3/10/2006 8:23:15 PM

Astatine is used in the earth's core (only 0.9 ozs though).
It is hard to find any other uses because it is radioactive and only "lives" for a short period of time. There's not enough on earth to create any good or important uses, let alone experiment it's uses because it is so rare.
any other questions you have about Astatine. just give me a shout and I'd gladly answer your question.
I may be young (14) but I'm quite the science genius.
I know a lot about other elements as well.
Hope I was of some help.

  Reply

E-mail address annabel - 1/20/2006 12:44:56 AM

Astatine is the only halogen (Group 7 or 17) element that is naturally radioactive. thats all i found so far.

  Reply

E-mail address annabel - 1/20/2006 12:36:46 AM

  Lauren - 12/14/2005 10:32:17 PM
  HELP!!!!!!!!!!!! What is Astatine? I have a science project due, and I have no Idea.

All i no is dat it has 85 protons, 25 neutrons, and 85 electrons. It was discovered in 1940 by Dale R. Corson, K.R.Mackenzie, and Emilo Segre.

  Reply

E-mail address annabel - 1/20/2006 12:30:14 AM

i have to make an atom and do this whole report on astatine mind givin me all da info u got?

  Reply

E-mail address annabel - 1/20/2006 12:28:56 AM

  E-mail address JONOOH - 12/9/2005 12:20:39 AM
  Yes This is my real name. I am from China. Astatine is used in owl's visions because it helps them see things better. Astatine is also in the ocean and is the primary food source of tubefish.

U seem like a very intellgent person, do u mind helpin me figure out a lil more?

  Reply

E-mail address Kayla - 1/9/2006 8:32:13 AM

  E-mail address JONOOH - 12/9/2005 12:20:39 AM
  Yes This is my real name. I am from China. Astatine is used in owl's visions because it helps them see things better. Astatine is also in the ocean and is the primary food source of tubefish.

any other uses?? i have a huge paper to write and any help i would much appreciate! :]

  Reply

E-mail address Kayla - 1/9/2006 8:16:27 AM

ok any other uses?

  Reply

E-mail address Kayla - 1/9/2006 8:09:58 AM

ok like ik this is really pissing me off i have a huge paper due tomarro and its 1:09am and its due second period!!!!! and i have 3/4 of a page writeen!!!!!! damn im secrewed!!!! HELP ME

  Reply

Lauren - 12/14/2005 10:34:31 PM

  E-mail address jesse - 12/9/2005 12:18:36 AM
  no uses at all my retarded science teacher got me a project gotta find 3 uses and she dont believe there are none. i hate her

One is in the Earths crust only 1oz though. I hope I could help.

  Reply

Lauren - 12/14/2005 10:32:17 PM

HELP!!!!!!!!!!!! What is Astatine? I have a science project due, and I have no Idea.

  Reply

E-mail address nikki - 12/14/2005 5:53:46 PM

what is astatine??? i need to kno for a project and i cant find an answer just strat out """what is it?" "what does it do?"

  Reply

E-mail address JONOOH - 12/9/2005 12:20:39 AM

Yes This is my real name. I am from China. Astatine is used in owl's visions because it helps them see things better. Astatine is also in the ocean and is the primary food source of tubefish.

  Reply

E-mail address jesse - 12/9/2005 12:18:36 AM

no uses at all my retarded science teacher got me a project gotta find 3 uses and she dont believe there are none. i hate her

  Reply

Javer - 11/27/2005 6:34:09 AM

Witty. Let's see if we can't try - oh, not ripping each other to shreds, hmm?

*sigh* That said, I'm out of ideas. Wikipedia has never failed me before, and neither would any of the other sites I just checked for the uses.

Had I known about them before now, that is.

  Reply

Koalagirl_58 - 10/13/2005 1:36:50 AM

GEEZ I havn't seen one use for Astatine, besides that it causes cancer in labortory animals, and that it is taken up by the thyroid (Sp?)gland! :K GRR

  Reply

avii - 9/17/2005 3:34:30 PM

isn't astatine used for injecting rats with cancer, treatment of hyperthyroidism and the possible treatment of toxic goiter?

  Reply

E-mail address marlee - 3/3/2005 5:54:22 AM

just tell us what the main uses for astatine are!

  Reply

mercy langat - 12/10/2004 12:18:54 AM

tell me the uses for astatine.

  Reply

E-mail address John Marks - 3/25/2000 11:36:59 AM

  E-mail address DREW ZIMMERMAN - 1/28/2000 2:38:28 AM
  HOW COME THERE ARE KNOW USES FOR ASTATINE

Because it's so radioactive and so short-lived it will either have fried you or vanished by the time you decide what to use it for. That's why it's also known as Therine, after Thera, the volcanic isle in the Aegean that blew up and destroyed Minoan Crete, giving rise to the myths of Atlantis.

  Reply

E-mail address DREW ZIMMERMAN - 1/28/2000 2:38:28 AM

HOW COME THERE ARE KNOW USES FOR ASTATINE

  Reply

 
 
   
Copyright © 1998-2016 Jan Straka
All rights reserved. Czech version Czech version