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<3 Science
Periodic Table
Vocab word | Definition |
---|---|
Periodic | describes something that occurs or repeats at regular intervals |
periodic law | the law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements |
period | in chemistry, a horizontal row of elements in the periodic table |
group | a vertical colu of elements in the periodic table |
alkali metals | one of the elements of Group 1 of the periodic table (lithium, sodium, potasaium, rubidium, cesium, and francium ) |
alkaline-earth metal | one of the elements of Group 2 of the periodic table (beryllium, magnesium, calcium, strontium, barium, and radium) |
halogen | one of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine |
noble gas | one of the elements of group 18 of the periodic table (helium, neon, argon, kypton,xenon, and radon) |