The quantum number m of a free gaseous atom is from Class Chemistry Structure of Atom

131.

The quantum number m of a free gaseous atom is associated with

132.

For principle quantum number n = 4, the total number of orbitals having l= 3 is

133.

Which of the following is the correct sequence of atomic weights of the given elements?

134.

Assertion : Hydrogen nuclei combines to form helium nuclei then energy is released.

Reason: Binding energy/nucleon of He is greater than hydrogen.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If Assertion is false but Reason is true.

135.

Azimuthal quantum number defines :

136.

Assertion : Nuclear binding energy per nucleon is in the order - ${}_{4}^{9}{Be} > {}_{3}^{7}{Li} > {}_{2}^{4}{He}$

Reason : Binding energy per nucleon increases linearly with difference in number of neutrons and protons.

If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.

137.

Which of the following has maximum energy ?

138.

Spectrum of Li²⁺ is similar to that of :

139.

Which of the following arrangements is possible?

140.

Assertion : ${}_{11}^{22}{Mg}$ emits a positron giving ${}_{12}^{22}{Mg}$ .

Reason : In β⁺ emission neutron is transformed into proton.

If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true and the reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

NEET Chemistry : Structure of Atom

n	l	m	s
5	2	2	$+ \frac{1}{2}$

n	l	m	s
2	2	0	$- \frac{1}{2}$

n	l	m	s
3	-2	1	$+ \frac{1}{2}$

n	l	m	s
0	0	1	$+ \frac{1}{2}$