Talk:Hassium

From Wikipedia, the free encyclopedia

	Chemistry Portal This article is supported by the Elements WikiProject, which gives a central approach to the chemical elements on Wikipedia. Please participate by editing this article, or visit the project page for more details. This article has also been selected for the Version 0.5 release of Wikipedia.
	This article is also supported by WikiProject Chemistry.
B	This article has been rated as B-Class on the quality scale.
Mid	This article has been rated as Mid-importance on the importance scale.
Article Grading: The article has been rated for quality and/or importance but has no comments yet. If appropriate, please review the article and then leave comments here to identify the strengths and weaknesses of the article and what work it will need.

This article is part of Wikipedia:WikiProject Elements. Elementbox converted 10:43, 15 July 2005 by Femto (previous revision was that of 20:19, 3 July 2005).

[edit] Huh?

"Hassium-270, a doubly magic isotope"

That has 108 protons and 162 neutrons. The magic numbers on the linked page are 2, 8, 20, 28, 50, 82, 126. 108 and 162 are not in the list. Ken Arromdee 08:45, 28 December 2006 (UTC)

Hehe, I was just about to say something similar, but you beat me to it. Another article on Wikipedia leads me to the same conclusion. --Dachannien^Talk_Contrib 08:49, 28 December 2006 (UTC)

Actually, i've just completed a course on applications of radioactive ion beams. Magic numbers aren't fixed when you're approaching the Neutron-rich & Proton-rich drip lines (theoretical limit of how many neutrons you can squeeze in a atom with fixed number of proton, and vice-versa). The classic magic numbers we see are based on stable elements and extrapolated for them. Things get really strange once you get near the drip lines: some magic numbers vanishes, new ones appear. Since I don't have my notes in front of me, I'm guessing this is what happening with Hassium-270. 154.20.57.153 04:29, 29 December 2006 (UTC)

[edit] chemical and physical properties

I've deleted the following text, which does not cite a source. If we really want to print speculation, we at least need a source for why this speculation might make sense.

It is predicted that hassium will be the densest element yet known, with a density exceeding two and a half times that of lead. This assumes that a measurable quantity of the element can be made, which is not possible at this time.

Kingdon 04:46, 12 February 2007 (UTC)

I've reverted another edit about the density, which also does not a cite a source. Specifically, the text "estimated 41 g/cm³" in the elementbox and "Hassium is probably the densest element known, with an estimated density of 41 g/cm³." in the article (the latter was also poorly placed - next to the ref tag for the "Chemistry of Hassium" paper, although I saw no mention of density in that paper). If there is a reason to include this in the article, we need a source for the information. See WP:ATT for example. Kingdon 00:08, 21 February 2007 (UTC)

[edit] 277Hs

An anon. added this isotope, unref'd, w a half life of 12m. Just want to be sure it's not vandalism. kwami (talk) 03:40, 5 April 2008 (UTC)

No, it's not "un"ref'd. Who unrefd and where?! Why don't you do the proper research before you ignorantly obstruct these pages? -lysdexia 07:51, 5 April 2008 (UTC) —Preceding unsigned comment added by 68.123.4.199 (talk)

There was no reference. I found one for 16.5 min. I don't have time to follow up every anonymous edit tweaking numbers to see if it's vandalism, which is why I added a comment here rather than simply reverting. kwami (talk) 07:54, 5 April 2008 (UTC)

The ref is in Wikipedia's data page for isotopes, and its talk page. There's also Google. —Preceding unsigned comment added by 68.123.4.199 (talk) 08:02, 5 April 2008 (UTC)