Niyakari

From Wikipedia
Niyakari, Ni28
Nickel electrolytic and 1cm3 cube.jpg
Niyakari
Ratidziko: Niyakai ino:
  • kuhwinya,
  • rusimbi,
  • sirivha ne kaundarama
chidzikwe cheuremu

wehatomu Ar°(Ni):

  • 58.6934±0.0004
  • 58.693±0.001 (abridged)
Numeri yehatomu (Z) 28
Boka: boka 10
Piriyodhi: piriyodhi 4
Bhuroku:  d-bhuroku
Jenganiso yemhodzigetsi: [Ar] 3d8 4s2 or [Ar] 3d9 4s1
Mhodzigetsi mu-shell: 2, 8, 16, 2 or 2, 8, 17, 1
Miriki dzemutumbi:
Fezi pa STP godo
Poyindi yekunyeuka: 1728 K ​(1455 °C, ​2651 °F)
Poyindi yekufanza: 3003 K ​(2730 °C, ​4946 °F)
Dhenisi (pedyo ne-r.t.) 8.908 g/cm3
Semutuvi (pa m.p.) 7.81 g/cm3
Dziya yekunyenguka: 17.48 kJ/mol
Dziya yekupfunga: 379 kJ/mol
Molar heat capacity 26.07 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1783 1950 2154 2410 2741 3184
Miriki dze ruhatomu
Umiriro we rututsiro: −2, −1, 0, +1, +2, +3, +4

(a mildly basic oxide)

Electronegativity Pauling scale: 1.91
Ito (eneji) dzekunonda:
  • 1st: 737.1 kJ/mol
  • 2nd: 1753.0 kJ/mol
  • 3rd: 3395 kJ/mol
  • (more)
Rhedhiyasi yehatomu: empirical: 124 pm
Rhedhiyasi

yegombedzwana:

124±4 pm
Rhedhiyasi ye

vhandewaarusi:

163 pm


Niyakari (kureva nickel, kubva paChiarabhu: النيكل alniykal) kana Nikeru kutodza Chingezi, inhangande ye chemishonga inoshandisa Ni sechiratidzo uye ine numeri ye hatomu ya 28. Isimbi inohwinya uye yechisirivha-chena inekaundrama kainako. Niyakari isimbi yerudarikira yakaoma uye inopambadzirwa. Niyakari tsvene inorhiyekta pazvechemishonga asi zvidimbu zvikuru zvinorhiyekta noupore-pore nemweya mumakondisheni echidzikwe nekuti hwada rekupasivha (kureva passivation) remafomu eniyakari yechivututsiro pachiso inodzivirira kumwe kun'ura. Zvakadaro, niyakari tsvene inowanikwa muchigoko cheRinopasi muuwandu ushoma, karuzhinji inowanikwa mumatombo e-ultramafic, uye nemu maintiriya emametlore makuru eniyakari-utare asinakugangaridzwa kuoksijeni ari kunze kwe guteromweya re Rinopasi.

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