'Subatomic particle details' presentation slideshows

Warmup (5 minutes) *see if you can attack the following questions already!!!!

1) How many protons are there in 1 atom of sulfur? 2) Which if the following elements below has 24 protons? A. bismuth B. chromium C. cadmium D. All of these. 3) How many neutrons are there in most boron atoms? 4) The atomic mass of an atom is mostly due to the mass of its:

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