Cards in this guide (5)
What is the maximum number of valance electrons an element can have
How many electrons in the valence shell of sulfur
There are 6 valence electrons in the sulfur atom.
What charge does an ion have if it has more protons then electrons
It has a positive (+) charge.
What was the plum-pudding atomic model
a description of electrons scattered inside the atom
An atom of aluminum (Al) has an atomic number of 13 and a mass number of 27. How many neutrons does it have