Question 1
What is the central idea of the modern model of the atom?
Question 2
Which particle has a positive charge?
Question 3
What is the mass number of a nucleus with $6$ protons and $8$ neutrons?
Question 4
What does the atomic number of an element tell you?
Question 5
Why did the results of Rutherford's alpha-particle scattering experiment support a nuclear model of the atom?
