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Richmond, Virginia

416 West Franklin Street
Richmond, Virginia 23220
Office: (804) 643.2828
Fax: (804) 643.2829

Houston, Texas

23122 Creek Park Dr.
Spring, Texas 77389
Office: (713) 280-1269

Calgary, Alberta

229 11th Ave SE, Suite 200
Calgary, Alberta T2G 0Y1

Helium’s standard atomic weight is

4.002602

.
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