First Five for November 28

A particular atom has eight protons, eight electrons and ten neutrons. Answer the following questions about this atom:

  1. What element is this?

  2. What is the mass number of the element?

  3. How many valence electrons does this atom have?

  4. What is the Lewis dot notation for this atom?

  5. What is the formula and name of the ion that this atom forms?

I am the owner-developer of and a science teacher at El Diamante High School in Visalia, CA.

Posted in Chemistry, First Five