Ga has high ionization enthalpy than Al. Explain.
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What is the significance of the terms - ‘isolated gaseous atom’ and ‘ground state’ while defining the ionization enthalpy and electron gain enthalpy?
Ionization enthalpy is the energy required to remove an electron from an isolated gaseous atom in its ground state. Although the atoms are widely separated in the gaseous state, there...
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How would you explain the fact that the first ionization enthalpy of sodium is lower than that of magnesium
The first ionization enthalpy of sodium is more than that of magnesium. This is primarily because of two reasons: a. The atomic size of sodium is greater than that of magnesium b....
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What are the various factors due to which the ionization enthalpy of the main group elements tends to decrease down a group?
The factors responsible for the ionization enthalpy of the main group elements to decrease down a group are listed below: (i) Increase in the atomic size of elements: As we move...
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Which one of the following statements is incorrect in relation to ionization enthalpy?
Electrons in orbitals bearing a lower n value are more attracted to the nucleus than electrons in orbitals bearing a higher n value. Hence, the removal of electrons from orbitals...
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(ii) A large proportion of children in a population is a result of (a) High birth rates (b) High death rates (c) High life expectancies
(a) High birth rates
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The ionization enthalpies of group 15 elements are higher than those of corresponding
[Hint : Due to their stable electronic configuration (ns2np3).]
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Bond dissociation enthalpy of F2 is less than that of Cl2. Explain why ?
[Hint : F2 is having higher electron-electron repulsion due to its smaller size, as compared to Cl2.]
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Assertion : N2 is less reactive than P4. Reason : Nitrogen has more electron gain enthalpy than phosphorus
(c) Assertion is correct, reason is incorrect
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Electromagnets are made of soft iron because soft iron has (a) high retentivity and high coercive force
(d) low retentivity and low coercive force.
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Ionization energy of a hydrogen-like ion A is greater than that of another hydrogen-like ion B.
The correct answer is (b) uA > uB
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