SATHEE: Classification of Elements and Periodicity in Properties

Classification of Elements and Periodicity in Properties - Result Question 40

####40. $N a^{+}, M g^{+}, A l^{3 +}$ and $S i^{4 +}$ are isoelectronic. The order of their ionic size is

(a) $N a^{+} > M g^{+ +} < A l^{3 +} < S i^{4 +}$

[1993]

(b) $N a^{+} < M g^{+ +} > A l^{3 +} > S i^{4 +}$

(d) $N a^{+} < M g^{+ +} > A l^{3 +} < S i^{4 +}$

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Classification of Elements and Periodicity in Properties - Result Question 40

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