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4 cards from this section. Quick, good the night before a test.
What is a proton?
Think about what charge a proton has.
Who discovered the proton?
Think of the scientist known for his gold foil experiment.
What charge does a proton have?
Think about the opposite of the charge of an electron.
The atomic number of an element is determined by?
What do protons tell us about the element?
A sulfur atom has 16 protons and 16 neutrons. If it gains 2 electrons, what is its overall charge?
Remember, gaining electrons gives a negative charge.
If an element's atomic number is 15, how many protons does it have? Name the element.
Reference the periodic table for element names.
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