| Niyakari, Ni28
|
|
| 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 youdarikira 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 enyuruko dzikuru dzeniyakari-utare dzisinakugangaridzwa kuoksijeni dziri kunze kwe guteromweya re Rinopasi.
