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berkeliumcaliforniumeinsteinium
Dy
Cf
  
 
 
Known properties
Name, Symbol, NumberCalifornium, Cf, 98
Chemical series Actinides
Period, Block 7, f
Appearance unknown; probably metallic,
silvery white or gray
Atomic weight 1 E-25 kg|[251] amu]]
Electron configurationElectron configuration is the arrangement of electrons in an atom, molecule or other body. Specifically, it is the placement of electrons into atomic, molecular, or other forms of electron orbitals. Orbitals, states, and wavefunctions Since electrons are [ RnAstatine Radon Xe Rn Uuo Full table General Name, Symbol, NumberRadon, Rn, 86 Chemical series Noble gases Group, Period, Block 18 (VIIIA), 6 , p Density, Hardness 9. 73 kg/m3 (273 K), NA Appearance colorless Atomic properties Atomic weight [222] amu Atomi]5f107 s2
e-The electron (also called negatron commonly represented as e&minus is a subatomic particle. In an atom the electrons surround the nucleus of protons and neutrons in an electron configuration. Electrons have the smallest electrical charge and when they mov's per energy levelAn energy level is a quantified stable energy, which a physical system can have; the term is most commonly used in reference to the electron configuration of electrons, in atoms or molecules. According to quantum theory, only certain energy levels are pos 2,8,18,32,28,8,2
State of matter solid
Most stable isotopes
isoIsotopes are atoms of a chemical element whose nuclei have the same atomic number, Z but different atomic weights, A''. The word isotope meaning at the same place comes from the fact that isotopes are located at the same place on the periodic table. The a NANatural abundance refers to the prevalence of different isotopes of an element as found in nature. The weighted (by natural abundance) average mass of these isotopes is the atomic weight listed for the element in the periodic table. The abundance of an el half-life DM DE M eV DP
248Cf {syn.} 333.5 d SF
α

6.361

244 Cm
249Cf{syn.} 351 ySF
α

6.295

245Cm
250Cf{syn.} 13.08 yα
SF
6.128

246Cm

251Cf{syn.}898 yα6.176247Cm
252Cf{syn.}2.645 yα
SF
6.217
 
248Cm
 
253Cf{syn.} 17.81 d β-
α
0.285
6.124
253 Es
249Cm
254Cf{syn.} 60.5 d SF
α
 
5.926
 
250Cm

Californium is a synthetic element in the periodic table that has the symbol Cf and atomic number 98. A radioactive transuranic element, californium has very few uses and was discovered by bombarding curium with alpha particles ( helium ions).





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