Question
All the elements in a group in the periodic table have the same
✓
Answer
d
Modern periodic table is compiled on the basis of atomic number of element. Hence, elements of each group or family have same number of electrons in their outermost or valence shell.
Modern periodic table is compiled on the basis of atomic number of element. Hence, elements of each group or family have same number of electrons in their outermost or valence shell.
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