Question
Which of the following elements is a member of the
actinoid series?Solution
The actinide series is a group of 15 elements on the periodic table with atomic numbers 89–103. The elements in this series are radioactive and have a wide range of oxidation states. Thorium is a radioactive actinide metal with the atomic number 90.
How many electrons are involved in the oxidation by KMnO4 in basic medium
Which element is denoted by the atomic number 28?
What is the molecular formula of chloroform?
Which of the following had signed two MoUs for the development of “Pilot Green Hydrogen Technologies” to reduce the carbon footprint in the ...
Which gas is commonly used to fill balloons?
What did Archimedes determine after discovering the Archimedes principle?
Which substance is commonly used as a thermometric material in thermometers due to its expansive properties under temperature changes?
Which mineral is the ore Of aluminium ?
Lexan is a man-made polymer used for making
Potassium Permanganate is used for purifying drinking water, because it –Â
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