Shielding effect across the period?

The octet rule does not always hold for which of the following elements?

Which one is not the absolute term of the element?

Which of the following is the best explanation that CO2 is non polar molecule?

The ionization energy?

Which type of bond is formed by overlap of p orbitals?

The relative attraction of the nucleus for the electrons in a chemical bond is called?

Which of the following will have highest value of electron affinity?

Which of the solid does not contain covalent bond?

Which one has maximum number of unpaired electrons?