Template:Infobox actinium

Actinium, ₈₉Ac

File:Actinium sample (31481701837).png
Actinium
उच्चारण	/ækˈtɪniəm/ ​(ak-TIN-ee-əm)
दिखावट	silvery-white, glowing with an eerie blue light; sometimes with a golden cast
जन अंक	[227]
Actinium in the periodic table
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson La ↑ Ac ↓ (Uqt) radium ← actinium → thorium
Atomic number (Z)	89
समूह	group n/a
अवधि	period 7
ब्लॉक	f-block
ऋणावेशित सूक्ष्म अणु का विन्यास	[Rn] 6d1 7s2
प्रति शेल इलेक्ट्रॉन	2, 8, 18, 32, 18, 9, 2
भौतिक गुण
Phase at STP	solid
गलनांक	1500 K ​(1227 °C, ​2240 °F) (estimated)
क्वथनांक	3500±300 K ​(3200±300 °C, ​5800±500 °F) (extrapolated)
Density (near r.t.)	10 g/cm3
संलयन की गर्मी	14 kJ/mol
Heat of vaporization	400 kJ/mol
दाढ़ गर्मी क्षमता	27.2 J/(mol·K)
परमाणु गुण
ऑक्सीकरण राज्य	+2, +3 (a strongly basic oxide)
इलेक्ट्रोनगेटिविटी	Pauling scale: 1.1
Ionization energies	1st: 499 kJ/mol 2nd: 1170 kJ/mol 3rd: 1900 kJ/mol (more)
सहसंयोजक त्रिज्या	215 pm
File:Actinium spectrum visible.png Spectral lines of actinium
अन्य गुण
प्राकृतिक घटना	from decay
क्रिस्टल की संरचना	​face-centered cubic (fcc) File:Cubic-face-centered.svg
ऊष्मीय चालकता	12 W/(m⋅K)
CAS नंबर	7440-34-8
History
खोज और पहला अलगाव	Friedrich Oskar Giesel (1902, 1903)
Named by	André-Louis Debierne (1899)
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct

Ac:   data m.p. cat ()
	in	calc from C	diff	report	ref
C	1227	—	—
K	1500	1500	0
F	2240	2241	-1
max precision	0
WD
input	C: 1227, K: 1500, F: 2240
comment	(estimated)

Ac:   data b.p. cat ()
	in	calc from C	diff	report	ref
C	3200	—	—
K	3500	3470	30
F	5800	5790	10
max precision	-2
WD
input	C: 3200±300, K: 3500±300, F: 5800±500
comment	(extrapolated)

PTActinium

Ra ← i'box Ra	iso 89Ac () infobox () isobox	→ Th i'box Th
Commons Commons Wikidata Wikidata:Q1121 Wiktionary Wiktionary Indexes in PT: § below · Page

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Pronunciation
Allotropes (demo)
Group (demo)
Period (demo)
Block (demo)
Standard atomic weight
most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Wikidata *
Symbol etymology (11 non-trivial)
* Not used in {{Infobox element}} (2021-12-24) See also Category:Infobox element data sets (0)

References

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