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The atomic number of an element is 17. The number of orbitals containing electron pairs in its valence shell is:
(1) Eight
(2) Six
(3) Three
(4) Two
Ans: Three
In Bohr's model, atomic radius of the first orbit is γ the radius of the 3rd orbit, is: (1) γ/ 3 (2)γ (3) 3γ (4) 9γ Ans: 9γ
why uranium235 and thorium232 dont participate in nuclear fission
Q. Explain heat according to kinetic theory of matter? Ans. On an atomic level the definitions of heat and temperature becomes more precise. According to the kinetic theory of
concentration cell with out transference +salt bridge
Explain Bulking of sand The presence of moisture content to particular extent in sand increases the volume of sand. This is due to the fact that the moisture causes ?lm of wate
Geometrical or cis-trans isomerism The compounds that have similar molecular formula but differ in the relative spatial arrangement of atoms or groups in space are termed a
IR of nitro compound
effect on human body.
How might temperature changes in the human body have an impact on human health
why is the reaction mixture does not have 50% reactants and 50% products?
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