Which one of the following has the highest electronegativity ?
Br
Cl
P
Si
B.
Cl
Electronegativity is the tendency to attract the shared pair of electron towards itself. It decreases down the group and increases in period.
Therefore, among the given options, Chlorine (Cl) has the highest electronegativity.
The solubilities of carbonates decrease down the magnesium group due to a decrease in
lattice energies of solids
hydration energies of cations
inter-ionic attraction
entropy of solution formation
Which of the following pairs involves isoelectronic ions ?
Mn3+ and Fe2+
Mn2+ and Fe3+
Cr3+ and Mn2+
Fe2+ and Co2+
Pauling's electronegativity values for elements are useful in predicting :
polarity of bonds in molecules
position of elements in electromotive series
co-ordination number
dipole moment of various molecules
Which is the correct order of electronegativity?
F > N < O < C
F > N > O > C
F > N > O < C
F < N < O = C