Relier Pairs Periodic Table Vocabulary (D)Version en ligne Use what you learned from your vocabulary flashcards. par Lydia Lawrence 1 Proton 2 Period 3 Neutron 4 Bohr model 5 Electron 6 Atomic Mass 7 Group 8 Atom 9 Element 10 Atomic Number A subatomic particle located on energy levels that has a negative charge. The number of protons and the number of electrons found in one atom of an element. The average mass of the protons plus the neutrons in an atom's nucleus. A basic visual of a single atom with protons, neutrons, and electrons on energy levels. This model was designed by Neils Bohr. A substance made of one type of atom found on the periodic table. These substances make up everything in the universe. A vertical column on the periodic table. It is also known as a family. The smallest unit a substance can be divided into and still hold the properties of that substance. The horizontal rows found on a periodic table. A subatomic particle located in the nucleus with a neutral, or no, charge. A subatomic particle located in the nucleus with a positive charge.
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