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Subjects
Science CBSE
Class 9 New
Journey inside the atom
Pumpa Practice Questions
23.
Isotopes and isobars
Exercise condition:
2
m.
Choose the correct answer.
Answer variants:
Isotope
Isotone
Isobar
1
.
S
16
40
,
Cr
20
40
:
2
.
C
6
14
,
C
6
13
:
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