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प्रश्न
Draw the electron dot structure of this compound.
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Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Write the names of the elements present in the:-
Ammonia
Write the names of the elements present in the:-
Acetic acid
What does an atom consist of ? Explain.
Electron, proton, neutron are the types of ______ in an atom.
In what respects do the three isotopes of hydrogen differ? Give their structures.
Define the following term with an example.
Compound
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without tasting?
A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n – 1 to t = n. Then, the ratio `S_n/(S_(n + 1))` is ______.
