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Elan Coil [88]
3 years ago
12

Which is the atomic number of an alkali metal? 10 11 12 13

Chemistry
2 answers:
prohojiy [21]3 years ago
5 0

Answer:

11 is the atomic number of alkali metal

Explanation:

The Group 1 elements are called the alkali metals. ... All the Group 1 elements are very reactive . They must be stored under oil to keep air and water away from them. Group 1 elements form alkaline solutions when they react with water, which is why they are called alkali metals.

kvv77 [185]3 years ago
3 0
I think it’s 11 for the alkali metal
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E^0_(Cd^{2+}/Cd)=-0.40V[/tex]

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Here Cd undergoes oxidation by loss of electrons, thus act as anode. nickel undergoes reduction by gain of electrons and thus act as cathode.

E^0=E^0_{cathode}- E^0_{anode}

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Using Nernst equation :

E_{cell}=E^o_{cell}-\frac{0.0592}{n}\log \frac{[Cd^{2+}]}{[Ni^{2+]}

where,

n = number of electrons in oxidation-reduction reaction = 2

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E_{cell}=0.18V

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