Question

The species which have fifth ionisation potential equal to 340

Answer 1

The species which have fifth ionisation potential equal to 340 is BORON

Answer 2

Boron is the species with a potential equal to 340 eV

Explanation:

Given that,

E = 340eV

E = 13.6z^{2} /n^{2}

For n = 1

340 = 13.6z^{2} /1^{2}

z^{2} = 3400/13.6

z = $\sqrt{25}$

z = 5

As we know, 5 is the atomic number for the species of Boron.

Learn more: Ionisation

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