Advertisements
Advertisements
प्रश्न
Identify the wrong statement.
विकल्प
Amongst the isoelectronic species, smaller the positive charge on cation, smaller is the ionic radius.
Amongst isoelectric species greater the negative charge on the anion, larger is the ionic radius.
Atomic radius of the elements increases as one moves down the first group of the periodic table.
Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the periodic table.
Advertisements
उत्तर
Amongst the isoelectronic species, smaller the positive charge on cation, smaller is the ionic radius.
APPEARS IN
संबंधित प्रश्न
Which of the following elements will have the highest electronegativity?
In the third period the first ionization potential is of the order.
IE1 and IE2 of Mg are 179 and 348 kcal mol−1 respectively. The energy required for the reaction \[\ce{Mg -> Mg^2+ + 2e^-}\] is
What are isoelectronic ions? Give examples.
Energy of an electron in the ground state of the hydrogen atom is −2.18 × 10−18 J. Calculate the ionisation enthalpy of atomic hydrogen in terms of kJ mol−1.
Explain the periodic trend of ionisation potential.
Why the first ionisation enthalpy of sodium is lower than that of magnesium while its second ionisation enthalpy is higher than that of magnesium?
Explain the following, give an appropriate reason.
The electron affinity values of Be and Mg are almost zero and those of N (0.02 eV) and P (0.80 eV) are very low.
Briefly give the basis for Pauling's scale of electronegativity.
State the trends in the variation of electronegativity in groups and periods.
