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defintions

chapter 2.2 fundamentals

TermDefinition
atomic numbers number of protons in a particular element
mass number number of protons plus neutrons in the atoms nucleus
isotopes atoms that have the same atomic number but different mass numbers
atomic weight number of protons plus the number of neutrons in an atom ofan element
biochemistry is a branch of chemistry that focuses on the chemistry of a living organism
4 most common elements in the human body carbon, hydrogen, oxygen, and nitrogen they make up 95% of the human body
where are electrons, protons, neutrons located within the atom protons and neutrons are located in the centrally nucleus of the atom, while electrons are in constant motion in electron cells around the nucleus
atomic radiatio energy or the fragments or the fragments of matter admitted from the stable nucelli of certain isotopes, such isotopes with unstable nuclei are called radioactive isotopes
Created by: eadskyl1
 

 



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