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Leni [432]
3 years ago
6

Compare the number of valence electrons in an atom of oxygen, o, with the number of valence electrons in an atom of selenium, se

. are oxygen and selenium in the same period or group?
Chemistry
1 answer:
Fiesta28 [93]3 years ago
4 0
Oxygen and selenium both have 6 valence electrons. They're in the same group hope this helps
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Explanation :

To calculate the volume of NaOH stock solution, we use the equation given by neutralization reaction:

M_1V_1=M_2V_2

where,

M_1\text{ and }V_1 are the molarity and volume of NaOH stock solution.

M_2\text{ and }V_2 are the molarity and volume of NaOH.

We are given:

M_1=6M\\V_1=?\\M_2=0.2M\\V_2=500mL

Putting values in above equation, we get:

6M\times V_1=0.2M\times 500mL\\\\V_1=16.7mL

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