PRICES MAY VARY. Our version of the Periodic Table of the Elements is printed on a vinyl banner because it’s more durable than a laminated poster and it won’t tend to curl. 4-Significant Digits: In most cases, the average atomic mass is rounded to four significant digits because additional digits are extraneous much in the same way a math teacher has the students round pi to 3.14. Any Wall Hanger: We didn’t include grommets because you can place push pins, nails, and tacks anywhere along the…
Lester Ray