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Atoms, Elements Comp

QuestionAnswer
Element Found on the periodic table, building block of all matter
Molecule Two or more atoms bonded together to create something new
Nucleus The center of an atom. Protons and Neutrons are found here
Proton Positive charge, found in the nucleus
Electron Negative charge, found in the electron cloud
Neutron Neutral or No charge, found in the nucleus
Strong Force Holds the protons and neutrons in the nucleus
Shell Level in the electron cloud
1st shell Holds 2 electrons
2nd shell Holds 8 electrons
3rd shell Holds 18 electrons
Atomic Number Number of protons or electrons an atom has.
Atomic Weight (mass) Number of protons plus the number of neutrons
How do you find the number of neutrons? Atomic number -- Atomic weight (mass) you must round to the whole number.
What does this formula make H2O? Water molecule
Created by: cpanici
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