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Periodic Table Vocab
Science Chapter 12 vocab
| Question | Answer |
|---|---|
| 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 column of elements in the periodic table; elements in a group share chemical properties |
| Alkali Metals | one of the metals of group 1 of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium) |
| Alkaline-Earth Metals | one of the elements in Group 2 of the periodic table (beryllium, magnesium, calcium, strontium, barium, and radium) |
| Halogens | one of the elements in Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine) halogens combine with most metals to form salts |
| Noble Gases | one of the elements in Group 18 of the periodic table (helium, neon, argon, krypton, xenon, and radon); noble gases are nonreactive |
| Metalloids | elements that can act as a metal sometimes or it can act as a nonmetal |