How many of the following orders/statements are correct.
a) IP₁ of nitrogen is not less than that of oxygen
b) IP₁ of Pb is less than that of Sn
c) Electronegativity order  B>Tl>In>Ga>Al  
d) IP₂ order B>C>Be
e) Electron gain enthalpy order  Ne>Ar>Kr>Xe>He>Rn
f) Electron affinity of  Be⁺⁴ is 217.6 ev/ion nearly.
g) Electronegativities of K & Rb are same
h) Order of sizes Tl>In>Al>Ga>B  
i) Official IUPAC name of element with atomic number 105 is Unnilquadium.