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Chemistry CBSE Live product
Class 9 (2025-26)
Structure of the atom
Annual Revision V - Structure of the atom
2.
Determination of the number of neutrons
Question:
1
m.
Identify the correct answer:
In the notation of the symbol
X
Z
A
, if Z =
11
and A =
23
. Find the number of neutrons in the atom.
\(10\)
\(9\)
\(12\)
\(22\)
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