Practice describing atoms of different elements ASSIGNMENT
Atomic
Element
symbol
# of
proton
# of
electron
#of
neutron
mass
The missing components in the table to the right
are indicated with orange letters. Complete the
table by filling in the corresponding number(s) or
symbol(s) below.
s
S
5
CO
B
27
31
58
A
49
115
A
Ta
c
73
H
181
B
Band
81
137
С
S-
16
18
16
D
E
F.
G
H