Electron in Atoms

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• 11 Cambridge

• 11 Harvard

• 11 MIT

Please write the electronic configuration of strontium! (Use periodic table)

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Please write the electronic configuration of

 $Co^{2+}$  

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Please write the electronic configuration of

 $N^{3-}$  

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How is the difference of energy level in shells and subshells?

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Which of the following orbitals can be found in the first period?

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Please write the electronic configuration of ₂₉Cu !

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What is meant by term first ionisation energy?

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The first seven ionisation energies of element X as above. In which group X element belongs to? Explain your answer!

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