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Atomic Theory Matter is composed of tiny building blocks, or particles, called _________. Atoms are composed of three types of subatomic particles: ____________,

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Presentation on theme: "Atomic Theory Matter is composed of tiny building blocks, or particles, called _________. Atoms are composed of three types of subatomic particles: ____________,"— Presentation transcript:

1 Atomic Theory Matter is composed of tiny building blocks, or particles, called _________. Atoms are composed of three types of subatomic particles: ____________, ______________, and _______________. LecturePLUS Timberlake

2 Subatomic Particles Particle Symbol Charge Relative Mass Electron e- _____ 0 Proton p+ _____ 1 Neutron n _____ 1 How big are electrons compared to protons and neutrons? See Scaling the Universe: LecturePLUS Timberlake

3 Location of Subatomic Particles
Protons and neutrons are located in the atom’s ______________. Electrons are found in a cloud surrounding the protons and neutrons. How far away are the electrons? LecturePLUS Timberlake

4 How many types of atoms are there?
LecturePLUS Timberlake

5 Did I Get It? All matter that exists in the universe is made up of _________________, which are the smallest units of matter. 2. The different types of ________________ are called ____________________. We know of about 118 of these, and we keep track of them in the _____________________________________________. LecturePLUS Timberlake

6 How to read the Periodic Table
Pick one of the boxes from the Periodic Table of Elements, and re-draw it here. LecturePLUS Timberlake

7 Atomic Mass on the Periodic Table
11 Na 22.99 Atomic Number Symbol Atomic Mass LecturePLUS Timberlake

8 Elements Atoms of the same type can combine to form _____________.
Au atoms combine to form gold Ag atoms combine to form silver LecturePLUS Timberlake

9 Atoms and molecules Single atoms can share or trade electrons to form __________. Two or more atoms bonded together is called a __________. Atom Bond Molecule LecturePLUS Timberlake

10 Where are all the Elements organized into one handy place?
LecturePLUS Timberlake


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