Block (periodic table)

From Wikipedia, the free encyclopedia
(Redirected from Periodic table block)
Jump to navigation Jump to search
A long periodic table showing, from left to right: the s-, d-, f-, and p-blocks. They are named after the orbital.[1]

A block on the periodic table is a group of elements that all have their electrons in the same atomic orbital. There are four blocks, s-, d-, f, and p-.[1] The word "block" was first used to describe this by Charles Janet.[2]

Group → 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
↓ Period
1 1
H

2
He
2 3
Li
4
Be

5
B
6
C
7
N
8
O
9
F
10
Ne
3 11
Na
12
Mg

13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4 19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5 37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6 55
Cs
56
Ba
57
La
1 asterisk 72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7 87
Fr
88
Ra
89
Ac
1 asterisk 104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og

1 asterisk 58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
1 asterisk 90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr

Blocks[change | change source]

p-block[change | change source]

The p-block is on the right side of the periodic table. Elements from groups 13-18 are in the p-block.

d-block[change | change source]

The d-block is in the middle of the periodic table. Elements from groups 3 to 12 are in the d-block.

References[change | change source]

  1. 1.0 1.1 Jensen, William B. (21 March 2015). "The positions of lanthanum (actinium) and lutetium (lawrencium) in the periodic table: an update". Foundations of Chemistry. 17: 23–31. doi:10.1007/s10698-015-9216-1.
  2. Charles Janet, La classification hélicoïdale des éléments chimiques, Beauvais, 1928