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प्रश्न
Identify the wrong statement.
पर्याय
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.
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उत्तर
Amongst the isoelectronic species, smaller the positive charge on cation, smaller is the ionic radius.
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संबंधित प्रश्न
The group of elements in which the differentiating electron enters the anti penultimate shell of atoms are called ________.
Which of the following elements will have the highest electronegativity?
Assertion: Helium has the highest value of ionisation energy among all the elements known
Reason: Helium has the highest value of electron affinity among all the elements known
Which of the following is the second most electronegative element?
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.
Explain the following, give an appropriate reason.
First ionisation potential of the C-atom is greater than that of the B atom, whereas the reverse is true is for the second ionisation potential.
What is the screening effect?
Briefly give the basis for Pauling's scale of electronegativity.
State the trends in the variation of electronegativity in groups and periods.
