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Published byΓολγοθά Βάμβας Modified over 5 years ago
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CHEMISTRY …page 7
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Table of contents…8 Chemistry Cover… page 7 Table of Contents… 8
Introduction to Atoms… 9
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Introduction to atoms…page 9
Attach questions to left side of the paper
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Introduction to the ATOM…9
What is matter? What is an atom? What is a nucleus? What is a proton? What is a neutron? What is an electron? What is the atomic number? What is the atomic mass?
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Introduction to the Atom…9
What is Matter? Anything that has mass and takes up space
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The smallest particle of an element.
What is an ATOM?
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Atoms are so small that…
It would take a stack of about 50,000 aluminum atoms to equal the thickness of a sheet of aluminum foil from your kitchen. A typical human cell contains roughly 1 trillion atoms. A speck of dust might contain 3 trillion atoms. 1 trillion atoms .
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What are atoms made of? Protons Neutrons Electrons
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What is the nucleus? The center of the atom
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What atom parts are found in the nucleus?
Protons and Neutrons
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What is a PROTON? A positively charged particle + - +
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A particle that has no charge (neutral) What is a Neutron?
Not the same neutron
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How do you calculate neutrons?
Neutrons=mass-atomic number How do you calculate neutrons?
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Electron (-) A negatively charged particle
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Where are electrons located?
outside the nucleus + - -
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What is the Atomic Number?
The amount of protons in an element Every element has a different atomic number What is the Atomic Number?
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How much the atom weighs Protons + Neutrons
What is ATOMIC MASS? How much the atom weighs Protons + Neutrons
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C Neutrons=Mass-Atomic Number Atomic number, protons, electrons 6
Symbol 12.01 Atomic Mass Neutrons=Mass-Atomic Number
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On the back of the periodic table
6 Atomic Number, Proton and Electron C 2,4 C 12.01 Atomic Mass Neutrons=mass-atomic number
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Mg 12 24.305 Mg 2,8,2 ATOMIC NUMBER= PROTONS= ELECTRONS= MASS=
NEUTRON= Mg 12 24.305
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ATOMIC #= P= E= MASS= N= Cl 17 35.45
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