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

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Office: (713) 280-1269

Calgary, Alberta

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

(403) 975-9603

Helium’s standard atomic weight is

4.002602

.
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