Periodic Table of Elements with Rounded Atomic Mass

Periodic Table – Rounded Atomic Mass

Periodic Table – Rounded Atomic Mass

H
1
He
4
Li
7
Be
9
B
11
C
12
N
14
O
16
F
19
Ne
20
Na
23
Mg
24
Al
27
Si
28
P
31
S
32
Cl
35
Ar
40
K
39
Ca
40
Sc
45
Ti
48
V
51
Cr
52
Mn
55
Fe
56
Co
59
Ni
59
Cu
64
Zn
65
Ga
70
Ge
73
As
75
Se
79
Br
80
Kr
84
Rb
85
Sr
88
Y
89
Zr
91
Nb
93
Mo
96
Tc
97
Ru
101
Rh
103
Pd
106
Ag
108
Cd
112
In
115
Sn
119
Sb
122
Te
128
I
127
Xe
131
Cs
133
Ba
137
La
139
Hf
178
Ta
181
W
184
Re
186
Os
190
Ir
192
Pt
195
Au
197
Hg
201
Tl
204
Pb
207
Bi
209
Po
209
At
210
Rn
222
La
139
Ce
140
Pr
141
Nd
144
Pm
145
Sm
150
Eu
152
Gd
157
Tb
159
Dy
163
Ho
165
Er
167
Tm
169
Yb
173
Lu
175
Fr
223
Ra
226
Ac
227
Rf
267
Db
268
Sg
269
Bh
270
Hs
269
Mt
277
Ds
282
Rg
282
Cn
286
Nh
286
Fl
290
Mc
290
Lv
293
Ts
294
Og
295
Ac
227
Th
232
Pa
231
U
238
Np
237
Pu
244
Am
243
Cm
247
Bk
247
Cf
251
Es
252
Fm
257
Md
258
No
259
Lr
266

This periodic table features each element’s atomic number, symbol, name, and atomic mass, with all atomic masses rounded to the nearest whole number. While actual atomic masses consider isotope variations and natural abundances, rounding makes calculations quicker and more straightforward. This approach provides a simplified yet practical reference for students, educators, and anyone working with chemical equations.

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