Lesson 12

Today we learned more about elements. We learned how to identify the protons, neutrons and electrons. You can estimate the number of neutrons by subtracting the number of protons by the amu of the element. We also learned more about figuring out the atomic mass, which is determined by summing the protons and neutrons. Something important to know is you change the number of protons, you change the element! Lastly we learned that a neutral atom the number of electrons is equal to the number of protons!

Homework:

Homework:

 

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