Difference between revisions of "Protactinium"

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Latest revision as of 17:55, July 13, 2016

Protactinium

Properties
Atomic symbol	Pa
Atomic number	91
Classification	Metallic
Atomic mass	231.03588 amu
Other Information
Date of discovery	1913
Name of discoverer	Kasimir Fajans and O.H. Göhring
Name origin	From the Greek Protos meaning first.
Uses	None
Obtained from	Occurs in minute trace amounts in uranium ores, but chiefly amongst the fission products of uranium, thorium, and plutonium. In 1961 the UK Atomic Energy Authority produced 125g of pure protactinium from uranium fuel elements, which represents the major world stock of protactinium.

Periodic Table of the Elements
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
1 H 1.008																	2 He 4.003
3 Li 6.939	4 Be 9.0122											5 B 10.811	6 C 12.011	7 N 14.007	8 O 15.999	9 F 18.998	10 Ne 10.183
11 Na 22.99	12 Mg 24.312											13 Al 26.982	14 Si 28.086	15 P 30.974	16 S 32.064	17 Cl 35.453	18 Ar 39.948
19 K 39.102	20 Ca 40.08	21 Sc 44.956	22 Ti 47.9	23 V 50.942	24 Cr 51.996	25 Mn 54.938	26 Fe 55.847	27 Co 58.933	28 Ni 58.71	29 Cu 63.546	30 Zn 65.37	31 Ga 69.72	32 Ge 72.59	33 As 74.922	34 Se 78.96	35 Br 79.904	36 Kr 83.8
37 Rb 85.47	38 Sr 87.62	39 Y 88.905	40 Zr 91.22	41 Nb 92.906	42 Mo 95.94	43 Tc [97]	44 Ru 101.07	45 Rh 102.91	46 Pd 106.4	47 Ag 107.87	48 Cd 112.4	49 In 114.82	50 Sn 118.69	51 Sb 121.75	52 Te 127.6	53 I 126.9	54 Xe 131.3
55 Cs 132.91	56 Ba 137.34	57* La 138.91	72 Hf 178.49	73 Ta 180.95	74 W 183.85	75 Re 186.2	76 Os 190.2	77 Ir 192.2	78 Pt 195.09	79 Au 196.97	80 Hg 200.59	81 Tl 204.37	82 Pb 207.19	83 Bi 208.98	84 Po 210	85 At 210	86 Rn 222
87 Fr 215	88 Ra 226.03	89** Ac 227.03	104 Rf [261]	105 Db [262]	106 Sg [266]	107 Bh [264]	108 Hs [265]	109 Mt [268]	110 Dt [271]	111 Rg [272]	112 Cn [277]	113 Nh [284]	114 Fv [289]	115 Mc [288]	116 Lv [292]	117 Ts [293]	118 Og [294]

*Lanthanides		58 Ce 140.12	59 Pr 140.91	60 Nd 144.24	61 Pm 145	62 Sm 150.35	63 Eu 151.96	64 Gd 157.25	65 Tb 158.92	66 Dy 162.5	67 Ho 164.93	68 Er 167.26	69 Tm 168.93	70 Yb 173.04	71 Lu 174.97

**Actinides		90 Th 232.04	91 Pa 231	92 U 238.03	93 Np 237.05	94 Pu 239.05	95 Am 241.06	96 Cm 244.06	97 Bk 249.08	98 Cf 252.08	99 Es 252.08	100 Fm 257.1	101 Md 258.1	102 No 259.1	103 Lr 262.11

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-{{Element | name=Protactinium | symbol=Pa | anumber=91 | amass=231.03588 amu | state=Solid | class=Metallic | cstructure=Orthorhombic| color=silvery metalic, radioactive | date=1913 | discname=Kasimir Fajans and O.H. Göhring | origname=From the Greek ''Protos'' meaning ''first''. | uses=None | obtained=Occurs in minute trace amounts in [[uranium]] ores, but chiefly amongst the fission products of uranium, thorium, and plutonium. In 1961 the [[UK Atomic Energy Authority]] produced 125g of pure protactinium from uranium fuel elements, which represents the major world stock of protactinium. }}
+{{Element | name=Protactinium | symbol=Pa | anumber=91 | amass=231.03588 amu | state=Solid | class=Metallic | cstructure=Orthorhombic| color=silvery metallic, radioactive | date=1913 | discname=Kasimir Fajans and O.H. Göhring | origname=From the Greek ''Protos'' meaning ''first''. | uses=None | obtained=Occurs in minute trace amounts in [[uranium]] ores, but chiefly amongst the fission products of uranium, thorium, and plutonium. In 1961 the [[UK Atomic Energy Authority]] produced 125g of pure protactinium from uranium fuel elements, which represents the major world stock of protactinium. }}
 [[Category:Metals]]
+{{Periodic table}}