Periodic Table and Periodicity · Chemistry · COMEDK
Start PracticeMCQ (Single Correct Answer)
COMEDK 2023 Morning Shift
The correct decreasing order of negative electron gain enthalpy for $$\mathrm{C}, \mathrm{Ca}, \mathrm{Al}, \mathrm{F}$$ and $$\mathrm{O}$$ is
COMEDK 2023 Evening Shift
The group number of the element in the periodic table with the electronic configuration $$(\mathrm{n}-1) \mathrm{d}^2 \mathrm{~ns}^2$$.
For $$n=4$$ is...
COMEDK 2021
The increasing order of atomic radii of the following group 13 elements is
COMEDK 2020
In the periodic table metals usually used as catalysts belong to