S_1 : Long form of periodic table completely helps in predicting the oxidation state of elements. S_2 : Metallic an

### Question Asked by a Student from EXXAMM.com Team

Q 2752123934.     S_1 : Long form of periodic table completely helps in predicting the oxidation state of elements.
S_2 : Metallic and covalent radii of potassium are 203 pm and 230 pm respectivley.
S_3 : The following set of elements does not represent the correct order of electron affinity values C < Si > P > N.
S_4 : Formation of Se^(2-) and Ar^(-), both require the absorption of energy.
A

FFFT

B

TTFT

C

TTTF

D

TTTT

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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