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1. When the “s”block elements react, do they donate or accept electrons? Answer : They donate electrons 2. Write the Subshellelectronic configuration of 24Cr ? Answer : 1s2 2s2 2p6 3s2 3p6 3d5 4s1 3. Which subshell is common to all subshells? Answer : s subshell 4.The atomic... Read More →

1. What is buoyancy? Ans: When a body is immersed completely or partially in a fluid, exerts an upward force on the body. 2.The weight of a body in air is 240N and weight in water is 190N. Find the buoyancy of water? Ans: weight of body in air= 240N weight in water=190N... Read More →