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Na+ ion is isoelectronic with:
(1) Li+
(2) Mg+2
(3) Ca+2
(4) Ba+2
Ans:(b) Mg+2
Tungsten: Atomic number 74 Symbol W Atomic weight 183.85 Discovery Purified Tungste
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dynamic resistance
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A body of mass 500g IS heated such that its température roses from -4*c to 100*c calculate the total heat energy consumed
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