Which set is expected to show the smallest difference in first ionisationenergy?
Fe, Co, Ni
Fe, Co, Ni are transition metal atoms and variation in properties of such elements (d-block elements) is quite less (as d electrons are effectively shielded by the inner electrons).
The dipole moment of LiH is and the interatomic distance between Li and H in this molecule is 1.596Å. What is the per cent ionic character in LiH?
Which of the following gains electrons more easily?
The IE1, IE2, IE3, IE4 and IE5 of an element are 7.1, 14.3, 34.5, 46.8, 162.2 eV respectively. The element is likely to be
The elector-negativities of N, C, Si and P are such that
Which of the following will have maximum electron affinity?
EN of the element (A) is E1 and IP is E2. Hence EA will be
Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding?
H2O is dipole, whereas BeF2 is not. It is because
The molecule having highest bond energy is
The interatomic distance in H2 and Cl2 molecules are 74 and 198 pm respectively. The bond length of HCl is