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प्रश्न
With the help of a diagram answer the questions are given below:
- Which atom should have smaller ionization energy, oxygen, or sulphur?
- The lithium forms +1 ions while beryllium forms +2 ions?
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उत्तर
Sulphur should have a smaller ionisation energy than oxygen.
- Lithium has the electronic configuration 1s22s1 while that of beryllium is 1s22s2.
- Li can achieve a noble gas configuration by losing one electron, while Be can do so by losing two electrons. Hence, lithium forms +1 ions while beryllium forms +2 ions.
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