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An element have atomic weight 40 and it's electronic configuration is 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 . Then its atomic number and number of neutrons will be: (1) 18 and 22
two oxides of a metal contain 27.6% and 30% oxygen. if the formula for the first oxide is m3o4 then what is the formula for the next oxide?
nitroalkane sare acidic in nature.Explain
Electrolytic reduction of magnesium chloride Iron cell 2. Magnesium 3. Graphite anode 4. Porcelain hood 5. Iron cathode 6. Coal gas 7. Chlorine 8. Coal gas 9. Molten ele
Electron configurations are governed by a limitation called as the Pauli Exclusion Principle: No two electrons can have the same value for all four quantum numbers n, l, m a
explain the synthesis of freon and westron i need only the synthesis of those coompound
decomposition of carbonates
Effect of substituent on acidic nature (a) An electron withdrawing substituent that is - I effect stabilizes the anion by dispersing the negative charge and hence increases the
Given the following mass percent compositions, determine the empirical formula: 49.5% C; 5.2% H; 28.8% N; 16.5% O.
The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3 (2) 5 → 2 (3) 4→ 3
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