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CHEMISTRY CH11 Atomic Structure — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9ScienceCHEMISTRY CH11 Atomic Structure2 Marks
Question
An element has atomic number 12.
a) Write the electric configuration.
b)To which group and period do it belong.
✓

Answer

a) K = 2, L = 8, M = 2
b) Group No . 2, Period No. 3

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