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mendelevium – nobelium – lawrencium
Yb
No
  
 
 
Known properties
Name, Symbol, NumberNobelium, No, 102
Chemical series Actinides
Period, Block 7 , f
Appearance unknown; probably metallic,
silvery white or gray
Atomic weight 1 E-25 kg|[259] u]]
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 p[ 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] 5 f14 7 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 pos2, 8, 18, 32, 32, 8, 2
State of matter Presumably a 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 NA half-life DM DE M eV DP
253No {syn.} 1.7 m α
ε		8.440
3.200		 249 Fm
253 Md
255No{syn.}3.1 m α
ε		8.445
2.012		251Fm
255Md
259No{syn.} 58 mα
ε
SF		7.910
0.500
 		255Fm
259Md
 

Nobelium, also known as unnilbium, is a synthetic element in the periodic table that has the symbol No and atomic number 102. A radioactive metallic transuranic element in the actinide series, nobelium is synthesized by bombarding curium with carbon ions. It was first identified by a team led by Albert Ghiorso and Glenn T. Seaborg in 1958.



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Nobeliummendelevium nobelium lawrencium Yb No Full table Known properties Name, Symbol, NumberNobelium, No, 102 Chemical series Actinides Period, Block 7 , f Appearance unknown; probably metallic, silvery white or gray Atomic weight 1 E-25 kg|[259] u]] Electron c  


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