ATOMIC
ATOMIC
ELEMENT
SYMBOL
NUMBER
WEIGHT
* Magnesium
Mg
12
24.312
Mn
25
54.9380
Mendelevium
Md, Mv
101
256
* Mercury
Hg
80
200.59
Molybdenum
Mo
42
95.94
Neodymium
Nd
60
144.24
Neon
Ne
10
20.183
Neptunium
Np
93
237
Nickel
Ni
28
58.71
Niobium
Nb, Cb
41
92.906
N
7
14.0067
Nobelium
No
102
254
Osmium
Os
76
190.2
* Oxygen
O
8
15.9994
Palladium
Pd
46
106.4
* Phosphorus
P
15
30.9738
Platinum
Pt
78
195.09
Plutonium
Pu
94
242
Polonium
Po
84
210
* Potassium
K
19
39.102
Praseodymium
Pr
59
140.907
Promethium
Pm
61
147
Protactinium
Pa
91
231
* Radium
Ra
88
226
Radon
Rn
86
222
Rhenium
Re
75
186.2
Rhodium
Rh
45
102.905
Rubidium
Rb
37
85.47
Ruthenium
Ru
44
101.07
Samarium
Sm
62
150.35
Scandium
Sc
21
44.956
* Selenium
Se
34
78.96
* Silicon
Si
14
28.086
* Silver
Ag
47
107.870
* Denotes elements most common to medicine.
Table 1-1. Elements, symbols, atomic numbers, and atomic
Weights in alphabetical order (continued).
MD0803
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