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Where is most of the MASS of an atom located?
In the nucleus
In the electron
Evenly spread throughout the atom
The NUCLEUS of an atom has an overall ___.
Which part of the atom accounts for the majority of its volume? (SIZE, not mass)
Number of protons
Number of neutrons
Which of the following list the elements in order, from those having the LEAST protons to those having the MOST protons in the atoms?
O, S, Se, Te
Rb, K, Na, Li
Na, S, Al, Cl
O, N, B, Li
What is the symbol for the ion that has 17 protons and 18 electrons?