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Grade: 10
        The first ionization potential of Na, Mg, A1, and Si are in the order

a. Na < Mg > A1 < Si
b. Na > Mg > A1 > Si
c. Na < Mg < A1 > Si
d. Na > Mg > A1 < Si
5 years ago

Answers : (1)

Navjyot Kalra
askIITians Faculty
654 Points
							Sol. Electronegativity increases from left to right in a period and decreases from top to bottom in a group. Variation is more rapid in group than in a period, hence, the desired order is : electronegativity : Si < P < C < N
						
5 years ago
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