Chapter 4 Flashcards
1
Q
Periodic
A
describes something that occurs or repeats at regular intervals
2
Q
Periodic Law
A
the law that states that the repeating chemical and physical properties of elements change periodically with the atomic number of the element
3
Q
period
A
in chemistry a horizontal row of elements in the periodic table
4
Q
group
A
a vertical column in the periodic table, elements in a group share chemical propertys
5
Q
alkali metal
A
one of the elements of group 1 of the periodic table
6
Q
alkaline-earth metal
A
one of the elements of group 2 of the periodic table
7
Q
halogen
A
one of the elements of group 17 of the periodic table, halogens combine with most metals to form salt
8
Q
noble gas
A
one of the elements in group 18 of the periodic table, noble gas are unreactive
