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Science CBSE Homework Assignments
Class 9
Structure of the atom
Valency
1.
Gain and loss of electron(s)
Task:
2
m.
Choose the correct answer based on the reaction given.
1
.
The given reaction shows
negative ion formation
anion formation
positive ion formation
.
Li
⟶
Li
+
+
1e
−
2
.
The below reaction shows
positive ion formation
negative ion formation
cation formation
.
N
+
3e
−
⟶
N
3
−
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