The energy ( in eV ) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

Select the correct answer - The energy required to remove an electron from a neutral isolated gaseous atom & convert it into a positively charged gaseous ion is called ________ [electron affinity, ionisation potential electronegativity]

Fill in the blank from the choices given in brackets : The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called ............ (electron affinity, ionisation potential, electronegativity)

The energy required to remove an electron from the outermost shell of an isolate gaseous atom is known as IE_(1) of that atom. Similarly, the enrgy required for the removal of the electron from the unipositive ion, diapositive ion and tripositive ion are known as IE_(2),IE_(3) and IE_(4) 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 Be(2s^(2)) , the IE_(1) and IE_(2) are 9.3 and 18.2 eV "atom"^(1) , whereas for Ca(4s^(2)) , the values are 6.1 and 11.9 eV . Among the following ionisation reactions, which one will have the maximum value of ionisation energy?

The energy required to remove an electron from the outermost shell of an isolate gaseous atom is known as IE_(1) of that atom. Similarly, the enrgy required for the removal of the electron from the unipositive ion, diapositive ion and tripositive ion are known as IE_(2),IE_(3) and IE_(4) 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 Be(2s^(2)) , the IE_(1) and IE_(2) are 9.3 and 18.2 eV "atom"^(1) , whereas for Ca(4s^(2)) , the values are 6.1 and 11.9 eV . Four elemensts have the following first ionization energies in KJmol^(-1): 762, 709, 59 and 558 . The elements are Ca, Ge . In and Sn (not in order). Which of these elements has the ionisation energy of 762 KJ mol^(-1) ?

The energy required to remove an electron from the outermost shell of an isolate gaseous atom is known as IE_(1) of that atom. Similarly, the enrgy required for the removal of the electron from the unipositive ion, diapositive ion and tripositive ion are known as IE_(2),IE_(3) and IE_(4) 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 Be(2s^(2)) , the IE_(1) and IE_(2) are 9.3 and 18.2 eV "atom"^(1) , whereas for Ca(4s^(2)) , the values are 6.1 and 11.9 eV . The correct order of arrangement of the first ionisation energies of C, N,O and F ( in decreasing values) is

The energy required to remove an electron from the outermost shell of an isolate gaseous atom is known as IE_(1) 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 IE_(2),IE_(3) and IE_(4) 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 Be(2s^(2)) , the IE_(1) and IE_(2) are 9.3 and 18.2 eV "atom"^(1) , whereas for Ca(4s^(2)) , the values are 6.1 and 11.9 eV . Consider the IE_(1) of the element whose electronic configurations correspond to the following

The energy required to remove an electron from the outermost shell of an isolate gaseous atom is known as IE_(1) of that atom. Similarly, the enrgy required for the removal of the electron from the unipositive ion, diapositive ion and tripositive ion are known as IE_(2),IE_(3) and IE_(4) 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 Be(2s^(2)) , the IE_(1) and IE_(2) are 9.3 and 18.2 eV "atom"^(1) , whereas for Ca(4s^(2)) , the values are 6.1 and 11.9 eV . Which of the following are isoelectronic species? 1 rarrCH_(3)^(o+),IIrarrNH_(2)^(ɵ),IIIrarrNH_(4)^(o+),IVrarrNH_(3)

The energy required to remove an electron from the outermost shell of an isolate gaseous atom is known as IE_(1) of that atom. Similarly, the enrgy required for the removal of the electron from the unipositive ion, diapositive ion and tripositive ion are known as IE_(2),IE_(3) and IE_(4) 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 Be(2s^(2)) , the IE_(1) and IE_(2) are 9.3 and 18.2 eV "atom"^(1) , whereas for Ca(4s^(2)) , the values are 6.1 and 11.9 eV . The relationship between IE_(4) and IE_(2) of an element is

What is the significance of the terms-'isolated gaseous atom' and 'ground state' while defining the ionisation enthalpy and electron gain enthalpy? Hint: Requirements for comparison purposes.