Multiple Choice
Which element has 25 protons in its nucleus?
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4. Atoms and Elements
The Atom (Simplified)
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In the simplified model of the atom, what makes up most of the volume of an atom?
A
Neutrons, because they are neutral and spread out through the atom
B
The nucleus (protons and neutrons)
C
The electron cloud (the region where electrons are likely to be found)
D
Protons, because they have the largest mass
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