Periodic TableHard

Question

Which of the following represents the correct trend for the mentioned property?

A. $F > P > S > B -$ Frist Ionization Energy

B. $Cl > F > S > P -$ Electron Affinity

C. $K > Al > Mg > B -$ Metallic character

D. $K_{2}O > {Na}_{2}O > MgO > {Al}_{2}O_{3}$ - Basic character

Choose the correct answer from the option given below.

Options

A.A, B and D only
B.A, B, C and D
C.A and B only
D.B and C only

Solution

⇒ On moving left to right in a period IE increases and from top to bottom in a group IE decreases.

$F > P > S > B$ (IE order)

⇒ On moving left to right in a period metallic and basic character decreases.

$K > Mg > Al > B$ (Metallic character order)

⇒ On moving top to bottom in a group metallic and basic character increases.

$$K_{2}O > {Na}_{2}O > MgO > {Al}_{2}O_{3} $$⇒ EA : Group $17 >$ Group $16 >$ Group 15

$$Cl > F > S > P$$

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