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Atom

TermDefinition
Atom Smallest particle that still can be considered an element
Electrons charged particles
Nucleus the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Protons positively charged particles in an atoms nucleus
Atomic Number the number of protons in the nucleus of an atom
isotopes Atoms with the same number of protons and neutrons
Mass number an isotope is identified by a mass number
atomic mass element that is averaged mass of all the isotopes of that element
periodic table an arrangement of elements showing the repeating pattern of their properties
chemical symbol below the atomic number is a letter
periods the periodic table is arranged in rows , period contains a seriou of different numbers
group the elements in a column form a group
Metals elements that are good conductors of electric current and heat
Created by: 15tashjen
 

 



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