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Ght #of # of Element symbol | # of neutron Atomic mass proton electron or s Co A B 49 C 27 D 73 31 G H 58 115 181 | Ba-2 137 16 18 16
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Ght

#of
# of
Element
symbol
| # of
neutron
Atomic
mass
proton
electron
or
s
Co
A
B
49
C
27
D
73
31
G
H
58
115
181
|
Ba-2
137
16
18
16

User Nathan Hanna
by
3.4k points

1 Answer

3 votes

Answer 78

Step-by-step explanation:

omg long

User Alex Riley
by
3.3k points
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