Barium loses ____ electrons to achieve noble gas electron configuration.
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Which chemical is present in the cells of cork of tree which makes them impervious to gases and water
Which of the following elements has the lowest melting point?
______ is used for making chemical apparatus like beakers, flasks etc.
Atomic number of which of the following elements is greater than that of Iodine
Atoms of same element having different mass numbers are called__________
Which of the following is also used as a Bio fertilizer?
By using which foam the Researchers from Indian Institute of Technology – Bombay have made a low cost piezo resistive vibration sensor?
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