Periodic Classification Of Elements - Study Mode
[#231] Elements having similar outer shell electronic configuration in their atoms are arranged in
Correct Answer
(D) All of these
[#232] What is the name of that inert gas, which is placed in the first period in the modern periodic table.
Correct Answer
(D) Helium
[#233] Proposed a present modern periodic table?
Correct Answer
(D) Mojle
[#234] . . . . . . . ., generally exhibit variable valency.
Correct Answer
(A) Elements of d-block
[#235] Which one among the following is the correct order of reactivity of the elements?
Correct Answer
(D) Na > Mg > Zn > Cu