Welcome to


Grandpa Pencil
Learns about

the Elements


A: Atomic number - B: Element name - C: Chemical symbol - D: Atomic Mass

Note 1: * against the atomic mass signifies 'atomic weight' of the isotope with the longest known half life
Note 2: The list, below, is in ascending order of the element's atomic number

A
B
C
D

A
B
C
D

A
B
C
D
1

Hydrogen

H
1.0079
27

Cobalt

Co
58.9332
53
Iodine
I
126.9045
2

Helium

He
4.0026
28

Nickel

Ni
58.71
54

Xenon

Xe
131.3
3

Lithium

Li
6.941
29

Copper

Cu
63.546
55

Cesium

Cs
132.9054
4

Beryllium

Be
9.01218
30

Zinc

Zn
65.381
56

Barium

Ba
137.33
5

Boron

B
10.81
31

Gallium

Ga
69.72
**

6

Carbon

C
12.011
32

Germanium

Ge
72.59
72

Hafnium

Hf
178.49
7

Nitrogen

N
14.0067
33

Arsenic

As
74.9216
73

Tantalum

Ta
180.9479
8

Oxygen

O
15.9994
34

Selenium

Se
78.96
74

Tungsten

W
183.85
9

Fluorine

F
18.9984
35

Bromine

Br
79.904
75

Rhenium

Re
186.207
10

Neon

Ne
20.179
36

Krypton

Kr
83.8
76

Osmium

Os
190.2
11

Sodium

Na
22.98977
37

Rubidium

Rb
85.4678
77

Iridium

Ir
192.22
12

Magnesium

Mg
24.305
38

Strontium

Sr
87.62
78

Platinum

Pt
195.09
13

Aluminum

Al
26.98154
39

Yttrium

Y
88.9059
79

Gold

Au
196.9665
14

Silicon

Si
28.0855
40

Zirconium

Zr
91.22
80

Mercury

Hg
200.59
15

Phosphorus

P
30.97376
41

Niobium

Nb
92.9064
81

Thallium

Ti
204.37
16

Sulfur

S
32.064
42

Molybdenum

Mo
95.94
82

Lead

Pb
207.19
17

Chlorine

Cl
35.453
43

Technetium

Tc
96.9064*
83

Bismuth

Bi
208.9804
18

Argon

Ar
39.948
44

Ruthenium

Ru
101.07
84

Polonium

Po
208.9824*
19

Potassium

K
39.0983
45

Rhodium

Rh

102.9055

85

Astatine

At
209.9870*
20

Calcium

Ca
40.8
46

Palladium

Pd
106.4
86

Radon

Rn
222.0176*
21

Scandium

Sc
44.9559
47

Silver

Ag
107.868
87

Francium

Fr
223.0197
22

Titanium

Ti
47.9
48

Cadmium

Cd
112.41
88

Radium

Ra
226.0254*
23

Vanadium

V
50.9414
49

Indium

In
114.82
89

***

24

Chromium

Cr
51.996
50

Tin

Sn
118.69
104

Unnilquadium

Unq

25

Manganese

Mn
54.938
51

Antimony

Sb
112.75
**

The lanthanides (Rare Earths)

26

Iron

Fe
55.847

52

Tellurium

Te
127.6

***

Actinide Series


     

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