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georgia science

grade 6 chapter 2 section 1 ATOMS

Minerals that are made up of only one type of element are called Native Elements
When things are too _______ or too _______ to study _________ are used small,large,models
A Greek philosopher who was the first to say matter is made up of ________ ______________ called ________ Democritus, small particles, atoms
Went on to say that all atoms of the same element are the same type of element John Dalton
made of protons and_______ and has a ____________ charge neutrons,positive
stated that electrons travel in orbit-like paths and those closest to the nucleus have lower energy----- He was correct/not correct about the orbit-like paths Neils Bohr, not correct
All atoms of the same _____________ have the same number of ____________ element,protons
number of protons is the Atomic Number
Equal to the number of protons and neutrons (add to get) Mass Number
In a ____________ atom, the number of ______ is equal to the number of electrons neutral,protons
Atoms of the same element with different number of neutrons are..... Used to...... Isotopes, treat certain cancers and find the age of old rocks
The building blocks of matter are Atoms
Created by: lexiroks!
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