Structure of the Atom
Fill in ALL the blanks. Use the periodic table to identify the element using the atomic number. In the
first column, write the information as it appears on your periodic table. In the last column, write the
name of the element showing its atomic mass like the example below.
Example:
For carbon with given atomic mass 14 write Carbon-
NOTE: ALL OF THE ATOMS ARE NEUTRAL
(ALWAYS ROUND mass # to nearest whole # when using a periodic table showing decimals)
(If mass # on periodic table disagrees with this sheet, use the numbers on sheet to complete this)
periodic
table
info
(AS
SHOWN)
Leave column
blank for now
atomic
mass
# of
# of
# of
number
number
Protons
Neutrons
Electrons
Showing Mass#
Chrg: (+)
Chrg: (0)
Chrg: (-)
(ex: Carbon-)
32
42
48
Cd
Cadmium
112
222
86
33
27
24
Cr
Chromium
52
30
35
135
56
NAME