How Many Protons in an Atom?

number of protons in an atom = atomic number (Z) of the element

... and.... the periodic table of the elements lists the elements in or order of increasing atomic number!

Now, if you'd like to see AUS-e-TUTE's new tutorial on this topic, along with worked examples of exam questions, you will need to visit http://www.ausetute.com.au/noprotons.html

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Bohr Model of an Atom

What is the Bohr model of the atom?
What is a planetary model of an atom?
What evidence is there that supports Bohr's model of the atom?

I'm glad you asked these questions!

AUS-e-TUTE has just added a new tutorial, game, test and exam on the topic of Bohr's Model of the Atom.
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If you are not an AUS-e-TUTE Member, this tutorial is currently available to view for free for evaluation purposes at http://www.ausetute.com.au/bohrmodel.html