Template:Infobox fermium

Fermium, ₁₀₀Fm
Fermium
Pronunciation	/ˈfɜːrmiəm/ (FUR-mee-əm)
Mass number	[257]
Fermium in the periodic cairt
	einsteinium ← fermium → mendelevium
Atomic nummer (Z)	100
Group	group n/a
Period	period 7
Block	f-block
Element category	Actinide
Electron confeeguration	[Rn] 5f12 7s2
Electrons per shell	2, 8, 18, 32, 30, 8, 2
Pheesical properties
Phase at STP	solit (predictit)
Meltin pynt	1800 K (1527 °C, 2781 °F) (predictit)
Atomic properties
Oxidation states	+2, +3
Electronegativity	Pauling scale: 1.3
Ionisation energies	1st: 627 kJ/mol ; (estimatit);
Ither properties
Naitural occurrence	synthetic
CAS Nummer	7440-72-4
History
Namin	efter Enrico Fermi
Diskivery	Lawrence Berkeley Naitional Laboratory (1952)
Main isotopes o fermium
α	248Cf
α	249Cf
α	251Cf
SF	–
	view; talk; edit; \| references

style="text-align:left"\| data m.p. cat v
	in	calc from C	diff	report	ref
C	1527	—	—
K	1800	1800	0
F	2781	2781	0
WD
input	C: 1527, K: 1800, F: 2781
comment	(predictit)

Check temperaturs Fm: na inpit for C, K, F.

Search