מאפיינים

CAS Number7440-52-0
PubChem CID23980
רדיוס אטומי176
Atomic Volume18.4
מסה אטומי167.259
חסוםf
נקודת רתיחה2,868
Bulk Modulus
קטגוריהלנתנידים
מבנה גבישיפשוט משושה
צבעכסף
רדיוס קוולנטי189
צפיפות החומר9.066
Electrical Resistivity
מבנה אלקטרוני[Xe] 4f12 6s2
Electrons per shell2, 8, 18, 30, 8, 2
אלקטרושליליות1.24
Electrons68
קבוצהna
Heat of Fusion19.9
Heat of Vaporization285
Ionization Potential6.108
Magnetic Ordering
Magnetic Susceptibility
מסה167.259
Mass Number68
נקודת התכה1,529
שםארביום
ניוטרונים99
מספר אטומי167
Oxidation States3
מחזור6
פאזהמוצק
Poisson Ratio
פרוטונים68
Shear Modulus
קיבול חום סגולי0.168
סמל כימיEr
מוליכות חום0.143
Van der Waals radius
Young's Modulus
שכיחות
Abundance in Earth's crust0.0003%
Abundance in Universe2×10-7%
Er ארביום 68 167.259 6 f 68 1529.0 2868.0 [Xe] 4f12 6s2 2 8 18 30 8 2 9.07 0.0003% Silver Hexagonal 1.2 {"1":"589.3","2":"1150","3":"2194","4":"4120"} 589 50 3 1.78 18.4 17.15 292.88 0.168 14.3 82.K 0 Solid, Paramagnetic, Conductor, Lanthanide, Stable, Natural UR-bi-em Soft, malleable, silvery metal. Erbium oxide is used in ceramics to obtain a pink glaze. Also a few uses in the nuclear industry and as an alloying agent for other exotic metals. For example, it increases the malleability of vanadium. Found with other heavier rare earths in xenotime and euxerite. E-DY_RT4fJ4 Erbium
Xenon was discovered in England by the Scottish chemist William Ramsay and English chemist Morris Travers in 1898.

They found xenon in the residue left over from evaporating components of liquid air.

Spectroscopic analysis showed the previously unseen beautiful blue lines that indicated the presence of a new element. From the Greek word xenon, stranger 68 1842 Carl G. Mosander Sweden Named after the village of "Ytterby" near Vaxholm in Sweden

Isotopes of Xenon

Standard Atomic Weight

167.259(3)

איזוטופים יציבים

162Er 164Er 166Er 167Er 168Er 170Er

איזוטופים לא יציבים

143Er 144Er 145Er 146Er 147Er 148Er 149Er 150Er 151Er 152Er 153Er 154Er 155Er 156Er 157Er 158Er 159Er 160Er 161Er 163Er 165Er 169Er 171Er 172Er 173Er 174Er 175Er 176Er 177Er

Xenon is not toxic, but its compounds are highly toxic
If inhaled, xenon can cause a person's voice to deepen
Xenon is used in flash lamps and arc lamps, and in photographic flashes.

Xenon is used in medicine as a general anesthetic and in medical imaging.

In nuclear energy applications, xenon is used in bubble chambers, probes, and in other areas where a high molecular weight and inert nature is desirable.