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Excellent! \(\text{No. of protons}\) \(\, = \text{Atomic Number} = 12\)

\(\text{No. of protons}\) \(+ \, \text{No. of neutrons}\) \(=\text{Mass Number} = 26\). Thus, \(\text{Number of neutrons} = 26 - 12 = 14\)
The chemical properties of an element are mostly decided by its atomic number.
Consider these two atoms: \(^1_1 X\) and \(^2_1 Y\). Will their chemical properties be similar?
  • Yes
  • No