/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 3 : Classification of Elements and Periodicity in Properties This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 Which element shows anomalous electronic configuration? Na Mg Cr Ca 2 / 10 Periodicity in properties is absent if elements are arranged by atomic mass atomic number electronic configuration valency 3 / 10 An element forms X²⁺ ion with noble gas configuration. Its atomic number is 10 12 18 20 4 / 10 Which period contains the maximum number of elements? 2nd 3rd 4th 6th 5 / 10 Prefix ‘un’ in systematic naming represents 0 1 2 3 6 / 10 Limitation of Döbereiner’s triads was that only few elements fit triads were incorrect atomic masses were wrong valency differed 7 / 10 Which factor does NOT affect ionization enthalpy? atomic size nuclear charge shielding density 8 / 10 Noble gases have positive electron gain enthalpy because of full shell large size low charge reactivity 9 / 10 The strongest reducing agent among alkali metals is Li Na K Cs 10 / 10 Number of periods in the modern periodic table is 6 7 8 9 Your score is 0% Restart quiz
