Evidence for Electronic Structure
Evidence for Electronic Structure: Overview
This topic covers concepts, such as, Screening Effect, Ionisation Enthalpy, Ionization Energy of Alkaline Earth Metals & Interpreting Successive Ionisation Energy etc.
Important Questions on Evidence for Electronic Structure
Define the excited state of the atom.
The first orbit is the ground state for hydrogen like atom. Justify.
How does ionization energy vary for the alkali metals while down the group?
The successive enthalpies are always lower than the first ionization enthalpy.
Explain why successive ionization energies of an element increase and how they account for the existence of three main energy levels in the sodium atom.
Explain the trend of ionisation energy down the group for alkaline earth metals.
Arrange in the ascending order of ionisation enthalpy.
Ionization energy of is . The energy of the first stationary state of is
Name the following:
The minimum amount of energy required to remove valence shell electron from a neutral isolated gaseous atom of an element.
Which of the following statement (s) is/are correct?
The energy required to remove an electron from the outermost shell of an isolated gaseous atom is known as of that atom.
Similarly, the energy required for the removal of the electron from the unipositive ion, diapositive ion and tripositive ion are known as and respectively, and are called successive ionisation energies. The magnitude of the charge depends on the size of the orbital of electron. Electrons in smaller orbitals are on average close with each other and have more repulsion. Thus for the and are and whereas for the values are
Among the following ionisation reactions, which one will have the maximum value of ionisation energy?
Four elements have the following first ionization energies in The elements are (not in order). Which of these elements has the ionization energy of
