5.1 Flashcards
1
Q
describes something that occurs or repeats at regular intervals
A
periodic
2
Q
the law that states that the repeating chemical and physical properties of elements change periodically with the atomic number of the elements
A
periodic law
3
Q
in chemistry a horizontal row of elements in the periodic table
A
period
4
Q
a vertical column of elements in the periodic table; elements in a group share chemical properties
A
group
