ATOMIC STRUCTURE
Directions: Fill in the following table:
Atom
He
Si
Sr2+
H
Rn
Argon-39
F-1
lead-208
protons
neutrons
electrons
# of neutrons
# of electrons
Directions: Fill in the following table:
Element/ion
Fe
K+
# of protons
27
2-
O
Strontium-89
25