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chapter 17
vocab
Term | Definition |
---|---|
Atom | Which is the piece of matter that still retains the property of the element. |
Nucleus | Protons and neutrons are found in a small, positively charged center of the atom. |
Protons | Are particles with an electrical charge of 1+. |
Neutrons | Are neutral particles that do not have an electrical charge. |
Electrons | Are particles with an electrical charge of 1-. |
Electron Cloud | The area around the nucleus of an atom where its electrons are most likely found. |
Atomic Number | The number of protons in an atom is equal to a number. |
Mass Number | The sum of the number of protons and the number of neutrons in the nucleus of an atom. |
Isotopes | Atoms of the same element that have different numbers of neutrons. |
Average Atomic Mass | The weighted-average mass of the mixture of its isotopes. |
Periodic Table | |
Groups | The vertical columns in the periodic table. |
Electron Dot Diagram | Uses the symbol of the element and dots to represent the electrons in the outer energy level. |
Periods | The horizontal rows of elements on the periodic table. |
Quarks | Protons and neutrons however are made up of smaller particles. |