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Ruthenium
Hardness of Plutonium
Cu (Symbol of Copper)
83 (Atomic Number of Bismuth)
Melting Point of Manganese in °C
Hydrogen (H) Properties
H
Hydrogen
Properties
36 /
87
Atomic Mass
1.008
amu
Atomic Number
1
Block
S
Boiling Point
20.27
K
Conductivity (Electric)
—
Conductivity (Thermal)
0.1805
W/mK
Crystal Structure
Simple Hexagonal
Decay Mode
—
Density (Liquid)
—
Density (STP)
0.0899
kg/m³
Electron Affinity
72.77
kJ/mol
Electron Configuration (Semantic)
1s¹
Electronegativity (Pauling)
2.2
Electrons per Shell
1
Group
1
Half Life
Stable
year
Heat (Fusion)
0.558
kJ/mol
Heat (Molar)
28.84
J/K.mol
Heat (Specific)
14300
J/(kg K)
Heat (Vaporization)
0.452
kJ/mol
Ionization Energies
1312
kJ/mol
Isotopes Known
¹H, ²H, ³H, ⁴H, ⁵H, ⁶H, ⁷H
Isotopes Stable
¹H, ²H
Magnetic Type
Diamagnetic
Melting Point
13.99
K
Molar Volume
0.01121
Oxidation States
-1c,1c
Period
1
1
2
3
4
5
6
7
Phase
Gas
@ 22°C
Quantum Numbers
2S1/2
Radius (Covalent)
37
pm
Radius (Empirical)
25
pm
Radius (Van Der Waals)
120
pm
Series
Diatomic Nonmetal
Valence Electrons
1
Wikipedia
https://en.wikipedia.org/wiki/Hydrogen
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18
1
2
3
4
5
6
7
N
Sy
Name
Period
Period
1
2
3
4
5
6
7
Cell colors represent Period –
Show Series Instead
Lanthanides
(All Group 3)
6
Actinides
(All Group 3)
7
1
H
Hydrogen
1
2
He
Helium
1
3
Li
Lithium
2
4
Be
Beryllium
2
5
B
Boron
2
6
C
Carbon
2
7
N
Nitrogen
2
8
O
Oxygen
2
9
F
Fluorine
2
10
Ne
Neon
2
11
Na
Sodium
3
12
Mg
Magnesium
3
13
Al
Aluminum
3
14
Si
Silicon
3
15
P
Phosphorus
3
16
S
Sulfur
3
17
Cl
Chlorine
3
18
Ar
Argon
3
19
K
Potassium
4
20
Ca
Calcium
4
21
Sc
Scandium
4
22
Ti
Titanium
4
23
V
Vanadium
4
24
Cr
Chromium
4
25
Mn
Manganese
4
26
Fe
Iron
4
27
Co
Cobalt
4
28
Ni
Nickel
4
29
Cu
Copper
4
30
Zn
Zinc
4
31
Ga
Gallium
4
32
Ge
Germanium
4
33
As
Arsenic
4
34
Se
Selenium
4
35
Br
Bromine
4
36
Kr
Krypton
4
37
Rb
Rubidium
5
38
Sr
Strontium
5
39
Y
Yttrium
5
40
Zr
Zirconium
5
41
Nb
Niobium
5
42
Mo
Molybdenum
5
43
Tc
Technetium
5
44
Ru
Ruthenium
5
45
Rh
Rhodium
5
46
Pd
Palladium
5
47
Ag
Silver
5
48
Cd
Cadmium
5
49
In
Indium
5
50
Sn
Tin
5
51
Sb
Antimony
5
52
Te
Tellurium
5
53
I
Iodine
5
54
Xe
Xenon
5
55
Cs
Cesium
6
56
Ba
Barium
6
57
La
Lanthanum
6
58
Ce
Cerium
6
59
Pr
Praseodymium
6
60
Nd
Neodymium
6
61
Pm
Promethium
6
62
Sm
Samarium
6
63
Eu
Europium
6
64
Gd
Gadolinium
6
65
Tb
Terbium
6
66
Dy
Dysprosium
6
67
Ho
Holmium
6
68
Er
Erbium
6
69
Tm
Thulium
6
70
Yb
Ytterbium
6
71
Lu
Lutetium
6
72
Hf
Hafnium
6
73
Ta
Tantalum
6
74
W
Tungsten
6
75
Re
Rhenium
6
76
Os
Osmium
6
77
Ir
Iridium
6
78
Pt
Platinum
6
79
Au
Gold
6
80
Hg
Mercury
6
81
Tl
Thallium
6
82
Pb
Lead
6
83
Bi
Bismuth
6
84
Po
Polonium
6
85
At
Astatine
6
86
Rn
Radon
6
87
Fr
Francium
7
88
Ra
Radium
7
89
Ac
Actinium
7
90
Th
Thorium
7
91
Pa
Protactinium
7
92
U
Uranium
7
93
Np
Neptunium
7
94
Pu
Plutonium
7
95
Am
Americium
7
96
Cm
Curium
7
97
Bk
Berkelium
7
98
Cf
Californium
7
99
Es
Einsteinium
7
100
Fm
Fermium
7
101
Md
Mendelevium
7
102
No
Nobelium
7
103
Lr
Lawrencium
7
104
Rf
Rutherfordium
7
105
Db
Dubnium
7
106
Sg
Seaborgium
7
107
Bh
Bohrium
7
108
Hs
Hassium
7
109
Mt
Meitnerium
7
110
Ds
Darmstadtium
7
111
Rg
Roentgenium
7
112
Cn
Copernicium
7
113
Nh
Nihonium
7
114
Fl
Flerovium
7
115
Mc
Moscovium
7
116
Lv
Livermorium
7
117
Ts
Tennessine
7
118
Og
Oganesson
7
Group
Period
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