Check Protactinium (Pa) on the periodic table

Click on any element to see its properties

1
2
3
4
5
6
7
1
Alkali metals
2
Alkaline earth metals
3
 
4
 
5
 
6
 
7
 
8
 
9
 
10
 
11
 
12
 
13
 
14
 
15
Pnictogens
16
Chalcogens
17
Halo­gens
18
Noble gases
Hydrogen
H
1.008
1
















































Helium
He
4.0026
2
Lithium
Li
6.94
3
Beryllium
Be
9.0122
4






























Boron
B
10.81
5
Carbon
C
12.011
6
Nitrogen
N
14.007
7
Oxygen
O
15.999
8
Fluorine
F
18.998
9
Neon
Ne
20.18
10
Sodium
Na
22.99
11
Magnesium
Mg
24.305
12






























Aluminium
Al
26.982
13
Silicon
Si
28.085
14
Phosphorus
P
30.974
15
Sulfur
S
32.06
16
Chlorine
Cl
35.45
17
Argon
Ar
39.95
18
Potassium
K
39.098
19
Calcium
Ca
40.078
20
Scandium
Sc
44.956
21
Titanium
Ti
47.867
22
Vanadium
V
50.942
23
Chromium
Cr
51.996
24
Manganese
Mn
54.938
25
Iron
Fe
55.845
26
Cobalt
Co
58.933
27
Nickel
Ni
58.693
28
Copper
Cu
63.546
29
Zinc
Zn
65.38
30
Gallium
Ga
69.723
31
Germanium
Ge
72.63
32
Arsenic
As
74.922
33
Selenium
Se
78.971
34
Bromine
Br
79.904
35
Krypton
Kr
83.798
36
Rubidium
Rb
85.468
37
Strontium
Sr
87.62
38
Yttrium
Y
88.906
39
Zirconium
Zr
91.224
40
Niobium
Nb
92.906
41
Molybdenum
Mo
95.95
42
Technetium
Tc
[97]
43
Ruthenium
Ru
101.07
44
Rhodium
Rh
102.91
45
Palladium
Pd
106.42
46
Silver
Ag
107.87
47
Cadmium
Cd
112.41
48
Indium
In
114.82
49
Tin
Sn
118.71
50
Antimony
Sb
121.76
51
Tellurium
Te
127.6
52
Iodine
I
126.9
53
Xenon
Xe
131.29
54
Caesium
Cs
132.91
55
Barium
Ba
137.33
56
Lanthanum
La
138.91
57
Hafnium
Hf
178.49
72
Tantalum
Ta
180.95
73
Tungsten
W
183.84
74
Rhenium
Re
186.21
75
Osmium
Os
190.23
76
Iridium
Ir
192.22
77
Platinum
Pt
195.08
78
Gold
Au
196.97
79
Mercury
Hg
200.59
80
Thallium
Tl
204.38
81
Lead
Pb
207.2
82
Bismuth
Bi
208.98
83
Polonium
Po
[209]
84
Astatine
At
[210]
85
Radon
Rn
[222]
86
Francium
Fr
[223]
87
Radium
Ra
[226]
88
Actinium
Ac
[227]
89
Rutherfordium
Rf
[267]
104
Dubnium
Db
[268]
105
Seaborgium
Sg
[269]
106
Bohrium
Bh
[270]
107
Hassium
Hs
[269]
108
Meitnerium
Mt
[278]
109
Darmstadtium
Ds
[281]
110
Roentgenium
Rg
[282]
111
Copernicum
Cn
[285]
112
Nihonium
Nh
[286]
113
Flerovium
Fl
[289]
114
Moscovium
Mc
[290]
115
Livermorium
Lv
[293]
116
Tennessine
Ts
[294]
117
Oganesson
Og
[294]
118









Cerium
Ce
140.12
58
Praseodymium
Pr
140.91
59
Neodymium
Nd
144.24
60
Promethium
Pm
[145]
61
Samarium
Sm
150.36
62
Europium
Eu
151.96
63
Gadolinium
Gd
157.25
64
Terbium
Tb
158.93
65
Dysprosium
Dy
162.5
66
Holmium
Ho
164.93
67
Erbium
Er
167.26
68
Thulium
Tm
168.93
69
Ytterbium
Yb
173.05
70
Lutenium
Lu
174.97
71












Thorium
Th
232.04
90
Protactinium
Pa
231.04
91
Uranium
U
238.03
92
Neptunium
Np
[237]
93
Plutonium
Pu
[244]
94
Americium
Am
[243]
95
Curium
Cm
[247]
96
Berkelium
Bk
[247]
97
Californium
Cf
[251]
98
Einsteinium
Es
[252]
99
Fermium
Fm
[257]
100
Mendelevium
Md
[258]
101
Nobelium
No
[259]
102
Lawrencium
Lr
[266]
103

Atomic number
Chemical Symbol
Atomic weight
Category
Electronegativity
Melting point
Boiling point
Electron affinity
Ionization Hs
Radius Hs

Frequently Asked Questions

  • What is the symbol for Protactinium ?

    The symbol for Protactinium is Pa.

  • What is the atomic number for Protactinium ?

    The atomic number for Protactinium is 91

  • What is the atomic weight for Protactinium ?

    The atomic weight for Protactinium is 231.03588

  • What is the melting point for Protactinium ?

    The melting point for Protactinium is 1845.

  • What is the boiling point for Protactinium ?

    The boiling point for Protactinium is 4273.

  • How many valence electrons are there in Protactinium?

    There are 5 valence electron in Protactinium

  • What is the electronic configuration of Protactinium ?

    The electronic configuration for Protactinium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f2 6d1

  • What is the oxidation state for Protactinium ?

    The oxidation state for Protactinium is 2,3,4,5c

  • Protactinium is discovered in which year?

    Protactinium is discovered in 1913

  • What is the density at STP for Protactinium ?

    The density for Protactinium at STP is 15370.

  • What is the ionization energy for Protactinium ?

    The ionization energy for Protactinium is 568 KJ/mol

  • What is the specific heat for Protactinium ?

    The specific heat for Protactinium is 99.1

  • What is the vaporization heat for Protactinium ?

    The vaporization heat for Protactinium is 470

  • What is the fusion heat for Protactinium ?

    The fusion heat for Protactinium is 15

  • What is the electron affinity for Protactinium ?

    The electron affinity for Protactinium is N/A

  • How many isotopes are there in Protactinium?

    There are 29 isotopes in Protactinium

  • What is the thermal conductivity for Protactinium ?

    The thermal conductivity for Protactinium is 47

  • What are the quantum numbers for Protactinium?

    The quantum numbers for Protactinium are 2,-2,6

  • What is the abundance for Protactinium in universe ?

    The abundance in universe for Protactinium is 0

  • What is the abundance for Protactinium in earth crust?

    The abundance in crust for Protactinium is 9.9e-13

  • What is the calculated radius for Protactinium?

    The calculated radius for Protactinium is undefined

  • What is the empirical radius for Protactinium?

    The empirical radius for Protactinium is 180

  • What is the covalent radius for Protactinium?

    The covalent radius for Protactinium is undefined

  • What is the Vanderwaals radius for Protactinium?

    The vanderwaals radius for Protactinium is undefined

  • What is the electronegativity for Protactinium?

    The electronegativity for Protactinium is 1.5

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