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Fermyo .
Fermium
100 Fm
Panagway
unknown
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan
fermium, Fm, 100
Paglitok
[[Help:Pronunciation respelling key|Plantilya:Smallcaps all -mee-əm ]]
Kategoriyang elemento
aktinido
Group, period, block
n/a, 7, f
Gibug-aton sa atomo
(257)
Kontorno sa elektron
[Rn ] 5f12 7s2 2, 8, 18, 32, 30, 8, 2
Electron shells of fermium (2, 8, 18, 32, 30, 8, 2)
History
Pagkadiskobre
Lawrence Berkeley National Laboratory (1952)
Physical properties
Phase
magahi
Melting point
1800 K , 1527 °C, 2781 °F
Atomic properties
Oxidation states
2, 3
Electronegativity
1.3 (Pauling scale)
Ionization energies
1st: 627 kJ·mol−1
Miscellanea
CAS registry number
7440-72-4
Most stable isotopes
Main article: Isotopes of fermium
iso
NA
half-life
DM
DE (MeV)
DP
252 Fm
syn
25.39 h
SF
-
-
α
7.153
248 Cf
253 Fm
syn
3 d
ε
0.333
253 Es
α
7.197
249 Cf
255 Fm
syn
20.07 h
SF
-
-
α
7.241
251 Cf
257 Fm
syn
100.5 d
α
6.864
253 Cf
SF
-
-
· r
Ang fermyo (Iningles fermium ) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Fm ug kaiphan nga atomik 100. Ang fermyo mao ang aktinido.
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