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Study guide science

QuestionAnswer
what is a compound? A pure substance consisting of two or more different elements chemically combined.
what is a element? A pure chemical substance consisting of a single type of atom
What are the 4 divisions ? Metals, nonmetals, metalloids, and noble gasses.
What are the 7 Nobel gasses? Helium, Neon , argon , krypton, xenon ,radon , oganesson
What are the 3 subatomic particles? Protons, neutrons and electrons
how many electrons does a calcium atom have? 20 electrons
How many shells does a calcium atom have ? 4 shells
Created by: ValentinaFL
 

 



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