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Ira Lisetskai [31]
3 years ago
10

Electron capture equation

Chemistry
1 answer:
Wittaler [7]3 years ago
4 0

Answer :

Electron capture : It is defined as the inner orbital electrons is captured by the nucleus converting a proton into a neutron.

Generally the electron capture equation is represented as,

^A_ZX+^0_{-1}e\rightarrow ^A_{Z-1}Y+x-rays

where,

A = atomic mass number

Z = atomic number

The electron capture equations are :

^{106}_{47}Ag+^0_{-1}e\rightarrow ^{106}_{46}Pd

^{116}_{50}Sn+^0_{-1}e\rightarrow ^{116}_{49}In

^{190}_{78}Pt+^0_{-1}e\rightarrow ^{190}_{77}Ir

^{123}_{53}I+^0_{-1}e\rightarrow ^{123}_{52}Te


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Two unknown molecular compounds were being studied. A solution containing 5.00 g of compound A in 100. g of water froze at a low
LenaWriter [7]

Answer:

Compound B has greater molar mass.

Explanation:

The depression in freezing point is given by ;

\Delta T_f=i\times k_f\times m..[1]

m=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Mass of solvent in kg}}

Where:

i = van't Hoff factor

k_f = Molal depression constant

m = molality of the solution

According to question , solution with 5.00 g of A in 100.0 grams of water froze at at lower temperature than solution with 5.00 g of B in 100.0 grams of water.

The depression in freezing point of solution with A solute: \Delta T_{f,A}

Molar mass of A = M_A

The depression in freezing point of solution with B solute: \Delta T_{f,B}

Molar mass of B = M_B

\Delta T_{f,A}>\Delta T_{f,B}

As we can see in [1] , that depression in freezing point is inversely related to molar mass of the solute.

\Delta T_f\propto \frac{1}{\text{Molar mass of solute}}

M_A

This means compound B has greater molar mass than compound A,

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A boron atom has ____ electrons at the first energy level and ____ electrons at the second energy level.
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