alleryWithin the same principal level, the more tightly held electron is the:
Af-electron
Bs-electron
Cp-electron
Dd-electron
Answer & Solution
Correct answer: B. s-electron
1. The comparison explains the boron and beryllium anomaly.
2. One kind of electron sits closer to the nucleus.
3. That is the s-electron.
_Source: syllabus Chemistry Part I, Chapter 3, Classification of Elements and Periodicity in Properties._
Keep practising Classification of Elements
Browse all Classification of Elements questions for NEET UG, or explore more Chemistry topics.
Related questions
Down a group, why do metallic properties generally increase?What is nuclear charge defined as?How does nucleophilicity generally change from left to right across a period?From group 1 to the noble gases, how does valency change?Ionization energy is also referred to by which other name?In group 13, how does electronegativity change from boron to thallium?Down a transition group, ionization enthalpy shows what trend versus main groups?Carbon monoxide, nitric oxide and nitrous oxide are examples of which type of oxide?