Interactive Periodic Table

Explore chemical properties and discover patterns across the periodic table

1
H
Hydrogen
2
He
Helium
3
Li
Lithium
4
Be
Beryllium
5
B
Boron
6
C
Carbon
7
N
Nitrogen
8
O
Oxygen
9
F
Fluorine
10
Ne
Neon
11
Na
Sodium
12
Mg
Magnesium
13
Al
Aluminium
14
Si
Silicon
15
P
Phosphorus
16
S
Sulfur
17
Cl
Chlorine
18
Ar
Argon
19
K
Potassium
20
Ca
Calcium
21
Sc
Scandium
22
Ti
Titanium
23
V
Vanadium
24
Cr
Chromium
25
Mn
Manganese
26
Fe
Iron
27
Co
Cobalt
28
Ni
Nickel
29
Cu
Copper
30
Zn
Zinc
31
Ga
Gallium
32
Ge
Germanium
33
As
Arsenic
34
Se
Selenium
35
Br
Bromine
36
Kr
Krypton
37
Rb
Rubidium
38
Sr
Strontium
39
Y
Yttrium
40
Zr
Zirconium
41
Nb
Niobium
42
Mo
Molybdenum
43
Tc
Technetium
44
Ru
Ruthenium
45
Rh
Rhodium
46
Pd
Palladium
47
Ag
Silver
48
Cd
Cadmium
49
In
Indium
50
Sn
Tin
51
Sb
Antimony
52
Te
Tellurium
53
I
Iodine
54
Xe
Xenon
55
Cs
Cesium
56
Ba
Barium
57
La
Lanthanum
58
Ce
Cerium
59
Pr
Praseodymium
60
Nd
Neodymium
61
Pm
Promethium
62
Sm
Samarium
63
Eu
Europium
64
Gd
Gadolinium
65
Tb
Terbium
66
Dy
Dysprosium
67
Ho
Holmium
68
Er
Erbium
69
Tm
Thulium
70
Yb
Ytterbium
71
Lu
Lutetium
72
Hf
Hafnium
73
Ta
Tantalum
74
W
Tungsten
75
Re
Rhenium
76
Os
Osmium
77
Ir
Iridium
78
Pt
Platinum
79
Au
Gold
80
Hg
Mercury
81
Tl
Thallium
82
Pb
Lead
83
Bi
Bismuth
84
Po
Polonium
85
At
Astatine
86
Rn
Radon
87
Fr
Francium
88
Ra
Radium
89
Ac
Actinium
90
Th
Thorium
91
Pa
Protactinium
92
U
Uranium
93
Np
Neptunium
94
Pu
Plutonium
95
Am
Americium
96
Cm
Curium
97
Bk
Berkelium
98
Cf
Californium
99
Es
Einsteinium
100
Fm
Fermium
101
Md
Mendelevium
102
No
Nobelium
103
Lr
Lawrencium
104
Rf
Rutherfordium
105
Db
Dubnium
106
Sg
Seaborgium
107
Bh
Bohrium
108
Hs
Hassium
109
Mt
Meitnerium
110
Ds
Darmstadtium
111
Rg
Roentgenium
112
Cn
Copernicium
113
Nh
Nihonium
114
Fl
Flerovium
115
Mc
Moscovium
116
Lv
Livermorium
117
Ts
Tennessine
118
Og
Oganesson
119
Uue
Ununennium
Lanthanides (57-71)
Actinides (89-103)

First Ionization Energy

The energy required to remove the outermost electron. It increases across a period (stronger attraction) and decreases down a group (electrons farther from nucleus).

Low
High
375.7 kJ/mol2372.3 kJ/mol

Noble gases have the highest values (stable configuration), while alkali metals have the lowest (easy to lose one electron).

Periodic Trends

Trend Across Period (Elements 1-20)

Trend Down Group 1 (Alkali Metals)

Noble gases have the highest values (stable configuration), while alkali metals have the lowest (easy to lose one electron).