An orbital in which n = 4 and l = 2 is expressed by
An orbital in which n = 4 and l = 2 is expressed by Options (a) 4s (b) 4p (c)…
7 years ago
Structure of Atom
The isotopes of elements were discovered by
The isotopes of elements were discovered by Options (a) Thomson (b) Soddy (c) Chadwick (d) Curie Correct Answer: SoddyExplanation:No explanation…
7 years ago
Which of the following sets of quantum numbers violates the rules of quantum mechanics
Which of the following sets of quantum numbers violates the rules of quantum mechanics Options (a) n=3, l=2, ml=-3, ms=+1/2…
7 years ago
The wavelength of the radiation emitted when an electron drops from 3rd orbit
The wavelength of the radiation emitted when an electron drops from 3rd orbit to 2nd orbit in H - atom…
7 years ago
How many unpaired electrons are present in ground state for Fe²⁺(Z=26)
How many unpaired electrons are present in ground state for Fe²⁺(Z=26) Options (a) 6 (b) 2 (c) 8 (d) 4…
7 years ago
How many electrons in an atom with atomic number 105 can have (n + l) = 8
How many electrons in an atom with atomic number 105 can have (n + l) = 8 Options (a) 30…
7 years ago
Bohr’s theory was modified to give the concept of elliptical orbits by
Bohr's theory was modified to give the concept of elliptical orbits by Options (a) Davison (b) Rutherford (c) Hund (d)…
7 years ago
The energy of an electron in the 3rd orbit of hydrogen atom is -E
The energy of an electron in the 3rd orbit of hydrogen atom is -E. The energy of an electron in…
7 years ago
Number of orbitals present in 3rd shell is
Number of orbitals present in 3rd shell is Options (a) 1 (b) 3 (c) 9 (d) 18 Correct Answer: 9Explanation:No…
7 years ago
The ionisation potential for hydrogen atom is 13.6eV, the ionization potential for He⁺
The ionisation potential for hydrogen atom is 13.6eV, the ionization potential for He⁺ is Options (a) 54.4 eV (b) 6.8…
7 years ago