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bulgar [2K]
3 years ago
5

Bigger size elements have low ionization energy and high shielding effect .justify the statement

Chemistry
1 answer:
BARSIC [14]3 years ago
6 0

Answer:

Larger is the size of the element it will have more electrons between nucleus and vallance shell electrons so there will be more shielding effect because ofwhich it become easy to add an electron into the atom which means it comprises low ionization energy.

Explanation:

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Marta_Voda [28]

Answer:

\Delta G=-541.4kJ/mol

Explanation:

Hello there!

In this case, according to the given information, it turns out firstly necessary to write out the described chemical reaction as shown below:

H_2+F_2\rightarrow 2HF

Now, we set up the expression for the calculation of the standard free energy change, considering the free energy of formation of each species, specially those of H2 and F2 which are both 0 because they are pure elements:

\Delta G=2\Delta G_f^{HF}-(\Delta G_f^{H_2}+\Delta G_f^{F_2})\\\\\Delta G=2*-270.70kJ/mol-(0kJ/mol+0kJ/mol)\\\\\Delta G=-541.4kJ/mol

Regards!

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3 years ago
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