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chemistry
Term | Definition |
---|---|
chemistry | A science that deals with the structure and properties. |
noble gas | Group 18 in the periodic table with a full outer shell |
atomic number | number of protons in the nucleus |
nuclear fusion | reaction in which the nuclei of one atom combines with the nuclei of another to form a larger nuclei |
isotope | atoms with same number of protons but not the same number of neutrons |
significant figure | a number that express a magnitude to a specified degree of accuracy. |
density | mass per unit of volume |
metalloid | element with the properties of both metals and nonmetals |
mass number | sum of protons and neutrons in the nucleus of an atom |
eletron cloud | system of electrons surrounding the nucleus of an atom |
atom | smallest particle of a substance that can exist by itself |
precision | the quality of being exact |