Latest revision as of 11:28, 11 June 2023
Ruthenium, 44 Ru File:Ruthenium a half bar.jpg उच्चारण (roo-THEE -nee-əm ) दिखावट silvery white metallic Standard atomic weight A r °(Ru) 101.07± 0.02 101.07± 0.02 (abridged)[1]
Atomic number (Z ) 44 समूह group 8 अवधि period 5 ब्लॉक d-block ऋणावेशित सूक्ष्म अणु का विन्यास [Kr ] 4d7 5s1 प्रति शेल इलेक्ट्रॉन 2, 8, 18, 15, 1 Phase at STP solid गलनांक 2607 K (2334 °C, 4233 °F) क्वथनांक 4423 K (4150 °C, 7502 °F) Density (near r.t. ) 12.45 g/cm3 when liquid (at m.p. ) 10.65 g/cm3 संलयन की गर्मी 38.59 kJ/mol Heat of vaporization 619 kJ/mol दाढ़ गर्मी क्षमता 24.06 J/(mol·K) Vapor pressure
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
2588
2811
3087
3424
3845
4388
ऑक्सीकरण राज्य −4, −2, 0, +1,[2] +2, +3 , +4 , +5, +6, +7, +8 (a mildly acidic oxide) इलेक्ट्रोनगेटिविटी Pauling scale: 2.2 Ionization energies 1st: 710.2 kJ/mol 2nd: 1620 kJ/mol 3rd: 2747 kJ/mol परमाणु का आधा घेरा empirical: 134 pm सहसंयोजक त्रिज्या 146±7 pm Spectral lines of rutheniumप्राकृतिक घटना primordial क्रिस्टल की संरचना hexagonal close-packed (hcp) Speed of sound thin rod 5970 m/s (at 20 °C) थर्मल विस्तार 6.4 µm/(m⋅K) (at 25 °C) ऊष्मीय चालकता 117 W/(m⋅K) विद्युत प्रतिरोधकता 71 nΩ⋅m (at 0 °C) चुंबकीय आदेश paramagnetic [3] दाढ़ चुंबकीय संवेदनशीलता +39× 10−6 cm3 /mol (298 K)[3] यंग मापांक 447 GPa कतरनी मापांक 173 GPa थोक मापांक 220 GPa पॉइसन अनुपात 0.30 मोहन कठोरता 6.5 ब्रिनेल हार्डनेस 2160 MPa CAS नंबर 7440-18-8 नामी after Ruthenia , the 19th-century Latin name for Russia [lower-alpha 1] खोज और पहला अलगावKarl Ernst Claus (1844)
Category Category: Ruthenium | references
Ru: Script error: The module returned a nil value. It is supposed to return an export table.
in
calc from C
diff
report
ref
C
2334
—
—
K
2607
2607
0
F
4233
4233
0
max precision
0
WD
Script error: The module returned a nil value. It is supposed to return an export table.
Script error: The module returned a nil value. It is supposed to return an export table.
input
C: 2334, K: 2607, F: 4233
comment
Ru: Script error: The module returned a nil value. It is supposed to return an export table.
in
calc from C
diff
report
ref
C
4150
—
—
K
4423
4420
3
delta
F
7502
7500
2
delta
max precision
0
WD
Script error: The module returned a nil value. It is supposed to return an export table.
Script error: The module returned a nil value. It is supposed to return an export table.
input
C: 4150, K: 4423, F: 7502
comment
References
These references will appear in the article, but this list appears only on this page.
The references of group "lower-alpha":
↑ It was common to give newly discovered elements Latin names (for example, lutetium and hafnium , both discovered in early 20th century, are named after the Latin names for Paris and Copenhagen ). Claus chose to name the element "in Honour of my Motherland",[4] and Claus was a Russian subject; as such, he chose the Latin name for Russia used back in the day, Ruthenia , as the basis for his name.[5] In contemporary Latin (as well as in contemporary English), Russia is usually referred to as Russia , and the name Ruthenia stands for a region in and around Zakarpattia Oblast in western Ukraine .[citation needed ]
Lua error in Module:TNT at line 182: Missing Commons dataset I18n/Module:TNT.tab.