Conventional Atomic Weight Values for Selected Elements - ACS

Can stripping the air of its moisture quench the world's thirst? We live in a thirsty world. Each person on Earth needs about 50 L of water each day t...
0 downloads 0 Views 213KB Size
REAGENT CHEMICALS

Appendix pubs.acs.org/doi/book/10.1021/acsreagents

Conventional Atomic Weight Values for Selected Elements For users needing specific atomic weight values for those elements with standard atomic weights given as intervals, such as for trade and commerce, use the atomic weight values with no uncertainty listed below. For very exacting calculations, it may be necessary to determine the exact atomic weight of the elements in the particular sample at hand.

Downloaded by 80.82.77.83 on June 15, 2017 | http://pubs.acs.org Publication Date (Web): February 28, 2017 | doi: 10.1021/acsreagents.6005

Element

Symbol

Atomic Number

Boron

B

5

Reference Atomic Weight 10.81

Bromine

Br

35

Carbon

C

6

79.904 12.011 12.011

Chlorine

Cl

17

35.45

Hydrogen

H

1

1.008

Lithium

Li

3

6.94

Magnesium

Mg

12

24.305

Nitrogen

N

7

14.007

Oxygen

O

8

15.999

Silicon

Si

14

28.085

Sulfur

S

16

32.06

Thallium

Tl

81

204.38

Source: Reprinted with permission from IUPAC, 2013. Copyright 2013 IUPAC.

DOI:10.1021/acsreagents.6005

A ACS Reagent Chemicals, Part 6 ACS Reagent Chemicals ACS Reagent Chemicals; American Chemical Society: Washington, DC, 2017. © 2017 American Chemical Society