Q21. (a) The 4f sub shell of an atom contains 12 electronsVhat is the maximum number of electrons havingthe same spin in it?(b) f M' has electronic configuration \lbrack Ar\rbrack 3d then write the configuration of M atom.(c) Write the electronic configuration of the atom with atomic number29.OR

Q21. (a) The 4f sub shell of an atom contains 12 electronsVhat is the

1.	Q21. (a) The 4f sub shell of an atom contains 12 electronsVhat is the maximum number of electrons havingthe same spin in it?(b) f M' has electronic configuration \lbrack Ar\rbrack 3d then write the configuration of M atom.(c) Write the electronic configuration of the atom with atomic number29.OR
Answer» Q21. (a) The 4f sub shell of an atom contains 12 electronsVhat is the maximum number of electrons havingthe same spin in it?(b) f M' has electronic configuration \lbrack Ar\rbrack 3d then write the configuration of M atom.(c) Write the electronic configuration of the atom with atomic number29.OR