Homework Help: Science

Posted by Katie on Monday, December 10, 2012 at 6:49pm.

What is the Mass number and Atomic number for the element B (Boron)? It is for a homework sheet and I am blanked out. I forgot my text book. Can anyone help me?

Science - JACKSON, Monday, December 10, 2012 at 6:53pm
atomic # 5
atomic mass 10.81

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