Among the second period elements the actual ionisation enthaply are in the order `Li lt B ltBe lt C lt O ltN lt F lt Ne`explain why O has lower `Delta IH` than N and F ?

Among the second period elements the actual ionisation enthaply are in the order Li lt B ltBe lt C lt O ltN lt F lt Ne. Expalin why Be has higher Delta IH than B.

Arrange C, N, O and F in the decreasing order of their second ionisation enthalpy.

Some elementS are given. Li, Cs, Be, C, N, O F, l, Ne, Xe. a) Arrange the above elements in the increasing order of ionization enthalpy. b) Arrange the given elements in the decreasing order of negative electron gain enthalpy.

Assertion : The second ionization energies of " "_(23) V,""_(24)Cr and,"" _(25)Mn are in the order V lt Cr lt Mn . Reason : Ionization energies show a regular increase along a period with increase of atomic number. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but(R) is not the correct explanation of (A). c)If(A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

Function f(x) = |x| - |x - 1| is monotonically increasing when a) x lt 0 b) x gt 1 c) x lt 1 d) 0 lt x lt 1

The inceasing order of reactivity among group 1 elements is Li lt Na lt K lt Rb lt CS whereas that among group 17 is F gt Cl gt Br gt I . Explain .

Give the correct order of initials T or F for the given statements. Use T for true statement and F for false statement: S1: Agl is less water soluble than AgF due to more polarisation of l ^(-) compared to F ^(-) S:2 Melting point of BaCl _(2) is higher than that of Be Cl _(2) due to higher ionic nature of BaCl _(2) S3: Order of lattice energy -NaF lt MgO lt AlN lt SiC : TTT, TTF, TFT, FTT,