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Home Q & A Board Science-Related Homework Help Physics
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einsteindude einsteindude
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9 years ago
If an atom has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass? What is the name of this element?
A) atomic mass, 137 amu; barium
B) atomic mass, 99 amu; technetium
C) atomic mass, 99 amu; radon
D) atomic mass 142 amu; einsteinium
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
Authors:
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bSharpbSharp
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9 years ago
Super! Don't forget to mark my post as best answer Grinning Face
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