Bohr’s model successfully explain

• Stability of the atom

• Atomic Spectra

• Wave nature of electron

• Both stability of the atom and atomic spectra

Quantum number value for 2p orbitals are

• a) n=2, l=1

• a) n=1, l=2

• a) n=1, l=0

• n=2, l=0

Which orbital has the higher screening effect?

• s

• p

• d

• f

Principal Quantum Number denotes

• Orbit

• Orbital

• Sub shell

• Spin

The modern periodic table is arranged based upon atomic

• Mass

• Number

• Radius

• Density

Which subshell has the highest 'n+l' value?

• 2s

• 2p

• 3d

• 4s

Splitting of spectral lines in presence of Magnetic field known as

• de-Broglie effect

• Bohr effect

• Stark Effect

• Zeeman effect

Atomic Spectra is

• Continuous

• Line

• Both continuous and line

• None of these

Across the period atomic size decreases due to

• Shielding effects

• Increase in nuclear force

• Decrease in nuclear force

• Photoelectric effect

Which of the following has the highest 2^nd ionization potential?

• N

• F

• O

• C