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Chemistry Test 1

QuestionAnswer
Is an atom made up of mostly space? Yes.
What is the charge of the nucleus of an atom? Positive.
Protons are negatively charged. False.
Electrons are negatively charged. True.
What is the charge of a neutron? It does not have a charge.
What is the atomic number of an atom with 9 protons, 9 neutrons, and 9 electrons? 9.
What is the atomic mass of an atom with 20 protons, 17 neutrons, and 19 electrons? 37.
What is an isotope? Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.
Created by: stalarek2024
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