Periodic Table Flashcards
1
Q
Describe the Periodic Table
A
It contains rows which are called periods and are arranged in order of increasing atomic mass. The properties change as you go along a period. The period number is the same number of electron shells
It contains columns which are called groups. They have similar properties because they have the same number of electrons in their outer shell. The group number is the same number of electrons on the outer shell. The properties gradually change as you go down a group
