The value of IE_(1), IE_(2), IE_(3) and IE_(4) of an atom are respectively 7.5 eV, 25.6 eV, 48.6 eV and 170.6 eV . The electronic configuration of the atom will be
The values of IE(I), IE(II), IE(III) and IE(IV) of an atom are respectively 7.5 eV, 25.6eV, 48.6eV and 170.6eV . The electronic configuration of the atom will be :
EVS teacher should
You wish to pick an element for a photocell that will operate via the photoelectric effect with visible light. Which of the following are suitable (work functions are in parentheses): tantalum (4.2 eV), tungsten (4.5 eV), aluminum (4.2 eV), barium (2.5 eV), lithium (2.3 eV)?
Consider the successive ionisation energy for an element 'A' . IE_(1) , IE_(2) , IE_(3) , IE_(4), IE_(5) are 100 eV , 150 eV , 181eV , 2000 eV , 2200 eV . Select correct statement (s) for element 'A' :
