The Periodic Table Flashcards
describes something that occurs or repeats at regular intervals
Periodic
the law that states that the repeating chemical and physical properties of elements change periodically with the atomic number of the elements
Periodic law
in chemistry, a horizontal row of elements in the periodic table
period
a vertical column of elements in the periodic table; elements in a group share chemical properties
group
one of the elements of Group 1 of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium)
Alkali metal
one of the elements in Group 2 of the periodic table (beryllium, magnesium, calcium, strontium, barium, and radium)
Alkaline-earth metal
one of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine); halogens combine with the most metals to form salts
Halogen
one of the elements of Group 18 of the periodic table (helium, neon, argon, krypton, xenon, and radon); they are unreactive
Noble gas