CBSE Class 11 d- and f-Block Elements — practice questions
5 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 d- and f-Block Elements in the app →Per NCERT §3.2 + Table 3.3, Mendeleev predicted the existence of 'Eka-aluminium' and 'Eka-silicon' — which latPer NCERT §3.6.5, which elements bordering the metal/non-metal staircase are called METALLOIDS (semi-metals)?Per NCERT §3.6, which exceptional element is positioned in the s-block (1s¹) but is sometimes placed with haloPer NCERT Table 3.7, which element has the MOST NEGATIVE electron gain enthalpy and why is it NOT fluorine?The modern periodic law arranges elements in order of: