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Grade 8 atomicstruct
atomic structure and the periodic table/balancing equations
| Question | Answer |
|---|---|
| An atomic particle that is positively charged. | proton |
| An atomic particle that has no charge. (think neutral) | neutron |
| An atomic particle that is negatively charged and moves outside the nucleus. | electron |
| The part of the atom that contains protons and neutrons. | nucleus |
| The number of protons in an atom's nucleus, which serves to identify an atom. | atomic number |
| The sum of an atom's protons and neutrons. | atomic mass number |
| An element that has the same number of protons but different number of neutrons in the nucleus. | Isotope |
| Formed when an atom loses or gains one or more electrons. | ion |
| It's the average mass of the isotopes of atoms of an element. | atomic mass |
| A table showing a repeating pattern of properties of the elements. | Periodic Table |
| Each horizontal row in the periodic table. | Period |
| Term used indicates how likely the element is to undergo a chemical change. | Reactive |
| Elements that conduct electricity and heat well, and have a shiny appearance. | metals |
| the elements on the right side of the periodic table that have properties opposite of those metals. | Nonmetals |
| elements that have properties of both metals and nonmetals. | Metalloids |
| The process by which atoms produce energy and produce particles. | radioactivity |
| The amount of time it takes for one-half of the atoms in a particular sample to decay. | half-life |
| The Actinoid series of elements are gases or solids? | solids |
Created by:
ahsimmon
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