The orientation of an atomic orbital is governed by – (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number

The orientation of an atomic orbital is governed by – (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number
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(2) magnetic quantum number Explanation: Quantum numbers may be defined as a set of four numbers which give complete information about the electron in an atom, i.e., energy, orbital occupied, size, shape and orientation of that orbital and the direction of electron spin. Magnetic quantum number is required to explain the fact that when the source giving the line spectrum is placed in a magnetic field, each spectral line splits in to a number of lines. The magnetic quantum number tells the number of orientations which the orbitals present within the same sub-shell can take up.
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The orientation of an atomic orbital is governed by (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number

Description : The orientation of an atomic orbital is governed by (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number

Last Answer : magnetic quantum number

Two electrons in an orbital are differentiated by which of the following? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Description : Two electrons in an orbital are differentiated by which of the following? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Last Answer : (2) Spin quantum number Explanation: Spin quantum number is the is the fourth quantum number that differentiates two electrons in the same orbital. The Pauli exclusion principle states that "no two ... atom. Each electron must have a different spin or occupy a different shell from any other.

Two electrons in an orbital are differentiated by which of the following ? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Description : Two electrons in an orbital are differentiated by which of the following ? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Last Answer : Spin quantum number

Two electrons in an orbital are differentiated by which of the following? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Description : Two electrons in an orbital are differentiated by which of the following? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Last Answer : (2) Spin quantum number Explanation: Spin quantum number is the fourth quantum number that differentiates two electrons in the same orbital.

The azimuthal quantum number determines the: w) spin of an electron x) shape of an orbital y) size of an orbital z) energy of an orbital

Description : The azimuthal quantum number determines the: w) spin of an electron x) shape of an orbital y) size of an orbital z) energy of an orbital

Last Answer : ANSWER: X -- SHAPE OF AN ORBITAL 

Which of the following indicates the shape of the orbital in which the electron moves? w) principal quantum number x) spin quantum number y) angular momentum quantum number z) none of these

Description : Which of the following indicates the shape of the orbital in which the electron moves? w) principal quantum number x) spin quantum number y) angular momentum quantum number z) none of these

Last Answer : ANSWER: Y -- ANGULAR MOMENTUM QUANTUM NUMBER

What does the principal quantum number ‘n’ and azimuthal quantum number ‘l’ of an electron belonging to an atom represent?

Description : What does the principal quantum number ‘n’ and azimuthal quantum number ‘l’ of an electron belonging to an atom represent?

Last Answer : What does the principal quantum number ‘n’ and azimuthal quantum number ‘l’ of an electron belonging to an atom represent?

The orbital angular momemtum quantum number indicates which one of the following? w) the average distance of the electrons from the nucleus x) the direction of spin of the electron y) the shape of the orbital z) the position about the three axes in space of the orbital

Description : The orbital angular momemtum quantum number indicates which one of the following? w) the average distance of the electrons from the nucleus x) the direction of spin of the electron y) the shape of the orbital z) the position about the three axes in space of the orbital 

Last Answer : ANSWER: Y -- THE SHAPE OF THE ORBITAL

Explain the significance of Azimuthal quantum number.

Description : Explain the significance of Azimuthal quantum number.

Last Answer : Ans. It refers as sub-energy level of an atom.

The maximum electron capacity of any orbital is (a) 2 (b) 6 (c) 14 (d) Cannot be determined unless the principal quantum number is known

Description : The maximum electron capacity of any orbital is (a) 2 (b) 6 (c) 14 (d) Cannot be determined unless the principal quantum number is known

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How many maximum 3s electrons can have magnetic spin quantum number -1/2?

Description : How many maximum 3s electrons can have magnetic spin quantum number -1/2?

Last Answer : Ans. 1 electrons.

An electron is present in 4 f sub - shell . The possible values of azimuthal quantum number for this electron are :-

Description : An electron is present in 4 f sub - shell . The possible values of azimuthal quantum number for this electron are :-

Last Answer : An electron is present in 4 f sub - shell . The possible values of azimuthal quantum number for this electron are :- A. ... 3 B. 1 ,2, 3, 4 C. 3 D. 4

Orientation of atomic orbital is controlled by –

Description : Orientation of atomic orbital is controlled by –

Last Answer : Magnetic Quantum number

Orientation of atomic orbital is controlled by

Description : Orientation of atomic orbital is controlled by

Last Answer : Magnetic Quantum number

If the value of principal quantum number is 4 , the possible values for magnetic quantum number will be :-

Description : If the value of principal quantum number is 4 , the possible values for magnetic quantum number will be :-

Last Answer : If the value of principal quantum number is 4 , the possible values for magnetic quantum number will be :- A. 4 B. 16 C. 32 D. 9

When there are two electrons in the same orbital, they have: (1) same spin (2) opposite spin (3) same or opposite spin (4) no spin

Description : When there are two electrons in the same orbital, they have: (1) same spin (2) opposite spin (3) same or opposite spin (4) no spin

Last Answer : opposite spin

In quantum chemistry, a nodal surface: w) gives 99 percent contour surface for an orbital x) exists for a 1s orbital y) has quantum number l = 1 z) is an orbital surface on which the probability density is zero

Description : In quantum chemistry, a nodal surface: w) gives 99 percent contour surface for an orbital x) exists for a 1s orbital y) has quantum number l = 1 z) is an orbital surface on which the probability density is zero

Last Answer : ANSWER: Z -- IS AN ORBITAL SURFACE ON WHICH THE PROBABILITY DENSITY IS ZERO 

Which quantum number indicates the shape of the orbital in which the electron moves?

Description : Which quantum number indicates the shape of the orbital in which the electron moves?

Last Answer : ANSWER: B -- SPIN QUANTUM NUMBER

Explain the significance of spin quantum number.

Description : Explain the significance of spin quantum number.

Last Answer : Ans.The direction of spinning of an electron in an orbit as well as the net magnetic moment of an orbital.

How many quantum numbers are needed to designate an orbital?

Description : How many quantum numbers are needed to designate an orbital?

Last Answer : Ans.Three quantum numbers.

(2) Exclusion Principle of Pauli Explanation: The Pauli exclusion principle is the quantum mechanical principle that no two identical fermions (particles with half-integer spin) may occupy the same quantum state simultaneously. A more rigorous statement is that the total wave function for two identical fermions is anti-symmetric with respect to exchange of the particles.

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The correct order of spin-only magnetic moments among the following is : (Atomic number : Mn=25,Co=27,Ni=28,Zn=30)

Description : The correct order of spin-only magnetic moments among the following is : (Atomic number : Mn=25,Co=27,Ni=28,Zn=30)

Last Answer : The correct order of spin-only magnetic moments among the following is : (Atomic number : Mn=25,Co=27,Ni=28,Zn=30) ... (4)]^(2-) gt [ZnCl_(4)]^(2-)`

The spin-only magnetic moment [in units of Bohr magneton, `(mu_(B)` of `Ni^(2+))` in aqueous solution would be (atomic number of `Ni=28)`

Description : The spin-only magnetic moment [in units of Bohr magneton, `(mu_(B)` of `Ni^(2+))` in aqueous solution would be (atomic number of `Ni=28)`

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What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

Description : What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

Last Answer : (2) Spin and Orbital motion Explanation: The motion of an object is said to be rotatory if the particles of the object rotate in a circular path with respect to an imaginary axis, known as the axis of rotation.

What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

Description : What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

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If in a motion, the axis of the rotation does not pass through the object, then the motion is called - (1) Spin motion (2) Oscillatory motion (3) Translatory motion (4) Orbital motion

Description : If in a motion, the axis of the rotation does not pass through the object, then the motion is called - (1) Spin motion (2) Oscillatory motion (3) Translatory motion (4) Orbital motion

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Which one of the following statements is WRONG? (A) A singlet or triplet state may result when one of the electrons from the HOMO is excited to higher energy levels (B) In an excited singlet state, the spin of the electron in the higher energy orbital is paired with the electron in the ground state orbital (C) Triplet excited state is more stable than the singlet excited state (D) When the electron from the singlet excited state returns to ground state, the molecule always shows fluorescence phenomenon

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Description : Which of the two types of electron motion (orbital movement and electron spin) is more important in the explanation of magnetism?

Last Answer : Electron spin.

Which quantum number gives the shape of the orbital?

Description : Which quantum number gives the shape of the orbital?

Last Answer : Answer: Azimuthal quantum number.

What is the basic technique used to stabilize a satellite? A. Gravity-forward motion balance B. Spin C. Thruster control D. Solar panel orientation 62. The jet thrusters are usually

Description : What is the basic technique used to stabilize a satellite? A. Gravity-forward motion balance B. Spin C. Thruster control D. Solar panel orientation 62. The jet thrusters are usually

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Five valence electrons of `.^(15)P` re labelled as If the spin quantum numbers of B and Z is `+(1)/(2)`, the group of electron with three of the quant

Description : Five valence electrons of `.^(15)P` re labelled as If the spin quantum numbers of B and Z is `+(1)/(2)`, the group of electron with three of the quant

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What is the maximum number of electrons that can occupy an s atomic orbital?

Description : What is the maximum number of electrons that can occupy an s atomic orbital?

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Distinguish between atomic orbital and molecular orbital.

Description : Distinguish between atomic orbital and molecular orbital.

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Suppose in certine condition only those transition are allowed to hydrogen atoms in which the principal quantum number a changes by`2` (a) Find the sm

Description : Suppose in certine condition only those transition are allowed to hydrogen atoms in which the principal quantum number a changes by`2` (a) Find the sm

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What element with an electron configuration that ends with np2 where n is any principal quantum number?

Description : What element with an electron configuration that ends with np2 where n is any principal quantum number?

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What the principal of quantum number?

Description : What the principal of quantum number?

Last Answer : The principal quantum number (n) is the energy level occupied bythe electron. It is an integer value, 1,2,3,4, etc.

Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4. Then the number of spectral lines in the emission spectra will be - (1) 2 (2) 6 (3) 5 (4) 3

Description : Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4. Then the number of spectral lines in the emission spectra will be - (1) 2 (2) 6 (3) 5 (4) 3

Last Answer : (2) 6 Explanation: Number of spectral lines from a state n to ground state is = n (n-1)/2 =4(4-1)/2 =12/2 =6

Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Description : Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Last Answer : ANSWER: GERMANIUM

What Molecular orbital interactions are not possible because the atomic orbitals have overlapping electron densities.?

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Description : A hydrogen like atom with atomic number Z is in an excited state of quantum number 2n. It can emit a maximum energy photon of 204 eV. If it makes a tr

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Description : Orbital magnetic moment of an electron, in an atom, is of the order of (a) 0.1 Bohr magneton (b) 1.0 Bohr magneton (c) 10 Bohr magneton (d) 100 Bohr magneton

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Electrons orbiting an atomic nucleus exist in a quantum probabilistic location. Are the actual measurements of that location infinite?

Description : Electrons orbiting an atomic nucleus exist in a quantum probabilistic location. Are the actual measurements of that location infinite?

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In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Description : In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Last Answer : The name given to a particular space around the nucleus in whichan electron moves is Orbital

In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Description : In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?

Last Answer : The name given to a particular space around the nucleus in whichan electron moves is Orbital

The branch of physics that deals with the motion of a very small particle is called- a)Field theory b)Particle Physics c)Quantum Mechanics d)Atomic Physics

Description : The branch of physics that deals with the motion of a very small particle is called- a)Field theory b)Particle Physics c)Quantum Mechanics d)Atomic Physics

Last Answer : c)Quantum Mechanics

A vanadium electrically, if the magnetic moment (spin only) of the vanadium product is 1.73 B.M. and the mass of electrode decreases by 102 mg during

Description : A vanadium electrically, if the magnetic moment (spin only) of the vanadium product is 1.73 B.M. and the mass of electrode decreases by 102 mg during

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