ATOMIC THEORY REVIEW.

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Presentation transcript:

ATOMIC THEORY REVIEW

What is ALL matter made of? ATOMS !!! What are the 3 subatomic particles? Protons, neutrons, & electrons!!!

What are the charges of the subatomic particles? positive n (0) neutral e (-) negative We know that there are the same number of p+ and e- in atoms on the Periodic Table… So What is the overall charge of those atoms? NEUTRAL… the positive charge cancels out the negative charge = 0!!!

What are the masses (amu) of the subatomic particles? What is this AMU stuff????? Atomic mass unit p+ = 1 n = 1 e- = 0 2.2 lbs= 1 kg 1.66 x 10-27 kg = 1 amu

What are the two areas of an atom? Nucleus and electron cloud

Where are the p+, n, and e- located in an atom? p+ in nucleus n in nucleus e- in electron cloud

Electron Cloud Nucleus Where is most of the volume of an atom located? Where is ALL the mass in an atom located? Nucleus Electron Cloud

What does a Bohr model of the atom look like? The nucleus contains the p+ and n… while the electrons “orbit” the nucleus in the energy rings of the e- cloud.

Inventory Practice 1. Mg 2. Mo 3. Ag 4. Au 5. La