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i. Define the term ‘electronegativity.’ ii. Explain how the concept of electronegativity relates to bond polarity.
I. Electronegativity, symbolized as χ, is the tendency of an atom to attract shared electrons to itself. An atom's electronegativity is affected by both its atomic number and the distance...
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How does ionisation potential vary in a period and in a group?
Moving left to right within a period or upward within a group, the first ionization energy generally increases. ... Ionization energy increases from left to right in a period and decreases...
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Write the four quantum numbers corresponding to the electron described below: 1. 11th electron in 5f14 2. 8th electron of 4d10 3. 5th electron of 4p6 4. 4th electron of 3p4 5. 11th electron of sodium
1. Principal quantum number N=3,Azimuthal quantum number l=0Magnetic quantum number m=0,Spin quantum number s=+1/22.Principal quantum number n=2Azimuthal quantum number l=1,Magnetic quantum number m=+1 or −1, Spin quantum number s=+21 or...
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Why is second ionisation enthalpy of alka;i metals exteremely high ?
The first ionization enthalpy of alkali metals is the energy that is needed to take one electron from the neutral atom. When it is done the ion with the charge...
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what is the difference between electron gain enthalpy and electron affinity?
Electron gain enthalpy has the same value as the electron affinity, yet it has the opposite sign. Both values show the energy required to add one electron to neutral atom...
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explain electron gain enthalpy in brief with the help of examples?also explain its trend in period and group .
Electron gain enthalpy is the energy which forms upon addition one electron to an atom in gas phase. F + 1e → F- + ∆H = -328 kJ/mol He +...
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<ol><li>explain how the atomic radius of gallium differs from aluminium</li><li>explain how the electronegativity of gallium differs from aluminium</li></ol>
1. Gallium have lower atomic radius than Aluminium. Because Gallium have filled d orbital but have no any filled d orbital and d orbital have poor shielding so, gallium have...
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how does the position of elements in the periodic table tell about their atomic structure, electron configuration, bonding types, reactivity, electronegativity and physical properties?
Answer: The elements in the periodic table are arranged in order of increasing atomic number. All of these elements display several other trends and we can use the periodic law...
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Atomic and ionic radii of the elements of group 16 are smaller than those of the corresponding elements of group 15 and increases down the group. Why?
The atomic radius of group-16 elements or oxygen family are smaller than that of group-15 elements. This is due to increase in the effective nuclear charge from group-15 elements which...
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what is the difference between electronegativity and electron gain enthalpy?
Electron gain enthalpy is the measure of the tendency (or energy required) of an isolated gaseous atom to accept an electron, whereas electronegativity is the measure of the tendency of...
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