Chapter 4 Sec 2 Flashcards
0
Q
Define periodic table
A
An arrangement of elements showing the repeating pattern of their properties
1
Q
Define atomic mass
A
The average mass of all the isotopes of an element
2
Q
Define period
A
Horizontal rows on the periodic table
3
Q
Define groups
A
Vertical columns on the periodic table
4
Q
Define chemical symbol
A
A representation of an element usually consisting of one or two letters
