Question
Easy
Solving time: 2 mins
Statement I The first ionisation energy of is greater than that of .
Statement II 2p-orbital is lower in energy than
Text solutionVerified
Statement I is true Be has higher first ionisation energy than B which is against periodic trend.
Statement II is false -orbital is lower in energy than , Aufbau's principle.
Statement II is false -orbital is lower in energy than , Aufbau's principle.
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Question Text | Statement I The first ionisation energy of is greater than that of . Statement II 2p-orbital is lower in energy than |
Topic | Classification of Elements and Periodicity in Properties |
Subject | Chemistry |
Class | Class 11 |
Answer Type | Text solution:1 |
Upvotes | 126 |