Hi folks,
Today we took a very quick look the three forms of heat transfer, convection, conduction and radiation. These are how heat moves from one object to another. We also began our investigation into the periodic table and into diagraming atoms. Next week we will get much deeper into these concepts and more.
1. How many protons, neutrons and electrons are in the following atoms
a. Aluminum
b. Antimony
c. Strontium
d. Oxygen
e. A positive ion of Gallium
f. A negative ion of Barium
2. Remember, the atomic weight of an atom is its protons plus its neutrons. With that in mind how many protons and neutrons are in the following atoms. Which ones would be isotopes?
a. Arsenic atomic weight 75
b. Phosphorus atomic weight 27
c. Aluminum atomic weight 29
3. Create a Bohr diagram for the following atoms.
a. Lithium
b. Barium
c. Neon
d. Sodium
e. Argon
f. He
4. Draw the shape of the periodic table and label:
a. Non-metals
b. transition metals
c. halogens
d. Alkali metals
e. Alkali Earth metals
Memorize the following atomic symbols and what they stand for: (Index cards would be great for this!)
H, He, Li, C, N, O, Ne, Na, Mg, Al, Cl, Ar, K, Ca, Fe, Ni, Cu, Kr, Ag, Sn, Xe, Au, Hg, Pb, Rn, P
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