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Chapter 1 Review

Atoms and Molecules

What is a positively charged particle in the nucleus of the atom? A proton
What is the region surrounding an atom's nucleus where one or more electrons are often found? The electron cloud
What is a negatively charged particle that occupies the space in an atom outside the nucleus? An electron
What are one or more atoms of an element having the same number of protons but a different number of neutrons? An isotope
What is the region the center of an atom that contains most of the mass of an atom? The nucleus
What is the number of protons in the nucleus of an atom of an element? The atomic number
What is an uncharged particle in the nucleus of an atom? A neutron
Does the nucleus of an atom contain protons and neutrons or electrons and neutrons? Protons and electrons
Does the nucleus have a positive or negative charge? Positive
Created by: coleylin2687