ଆଇନ୍‌ଷ୍ଟାଇନିଅମ

ଆଇନ୍‌ଷ୍ଟାଇନିଅମ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Es ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୯୯ ।

Einsteinium,  ₉₉Es

ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକ	einsteinium, Es
Appearance	silver-colored
ଉଚ୍ଚାରଣ	/aɪnˈstaɪniəm/ eyen-STY-nee-əm
Einsteinium in the periodic table
Ho ↑ Es ↓ (Upu) californium ← einsteinium → fermium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)	99
ଶ୍ରେଣୀ, ବ୍ଳକ	group n/a, f-block
ପର୍ଯ୍ୟାୟ	period 7
ମୌଳିକ ପ୍ରକାର	actinide
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)	(252)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ	[Rn] 5f11 7s2
per shell	2, 8, 18, 32, 29, 8, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥା	solid
ଗଳନାଙ୍କ	1133 K ​(860 °C, ​1580 °F)
Density near r.t.	8.84 g/cm3
Atomic properties
Oxidation states	2, 3, 4
Electronegativity	Pauling scale: 1.3
Miscellanea
Crystal structure	​face-centered cubic (fcc)
Magnetic ordering	paramagnetic
CAS Number	7429-92-7
ଇତିହାସ
ଆବିଷ୍କାର	Lawrence Berkeley National Laboratory (1952)
Most stable isotopes of einsteinium
iso NA half-life DM DE (MeV) DP 252Es syn 471.7 d α 6.760 248Bk ε 1.260 252Cf β− 0.480 252Fm 253Es syn 20.47 d SF - - α 6.739 249Bk 254Es syn 275.7 d ε 0.654 254Cf β− 1.090 254Fm α 6.628 250Bk 255Es syn 39.8 d β− 0.288 255Fm α 6.436 251Bk SF - -

ଧର୍ମ

ସହାୟକ ଗ୍ରନ୍ଥ

• Haire, Richard G. (2006). "Einsteinium". In Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (PDF). Vol. 3 (3rd ed.). Dordrecht, the Netherlands: Springer. pp. 1577–1620. doi:10.1007/1-4020-3598-5_12. Archived from the original (PDF) on 2010-07-17. Retrieved 2013-04-24.
• Holleman, Arnold F. and Wiberg, Nils Textbook of Inorganic Chemistry, 102 Edition, de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1.
• Seaborg, G.T. (ed.) (1978) Proceedings of the Symposium Commemorating the 25th Anniversary of Elements 99 and 100, 23 January 1978, Report LBL-7701

ବାହାର ଲିଙ୍କ

• Einsteinium at The Periodic Table of Videos (University of Nottingham)
• Age-related factors in radionuclide metabolism and dosimetry: Proceedings – contains several health related studies of einsteinium