16301720726 | Nucleus | The dense positively charged mass located in the center of an atom made of protons and neutrons. | 0 | |
16301720727 | Proton | A subatomic particle that has a positive charge and that is found in the nucleus of an atom | 1 | |
16301720728 | Electron | A subatomic particle that has a negative charge, is found outside the nucleus and has almost no mass | 2 | |
16301720729 | Neutron | A subatomic particle that has no charge and that is found in the nucleus of an atom. | 3 | |
16301720730 | Atomic number | A unique number for each element determined by the number of protons in an atom of that element. | 4 | |
16301720731 | Mass number | The sum of the number of protons and neutrons in the nucleus of an atom. | 5 | |
16301720732 | Isotopes | Atoms of a given element that have different numbers of neutrons and different mass numbers. | 6 | |
16301720733 | Energy levels | The possible energies that electrons in an atom can have. | 7 | |
16301720734 | Electron cloud | A visual model of the most likely locations for the electrons in an atom. | 8 | |
16301720735 | Orbital | A region of space around the nucleus where an electron is likely to be found. | 9 | |
16301740977 | Ion | An atom or group of atoms that has a positive or negative charge. | 10 | |
16301840043 | Bohr Model | model of an atom that shows electrons in circular orbits around the nucleus | 11 |
Chapter 5: Atomic Structure Flashcards
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