The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as

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#Question id: 20038

#XL - P Chemistry

How many electrons in Cu atom have (n + ) = 4

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#Question id: 20039

#XL - P Chemistry

In any subshell the maximum number of electrons having same value of spin quantum number is

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#Question id: 20040

#XL - P Chemistry

For a certain particle, it is found that uncertainty 1840 in velocity is reciprocal of uncertainty in position This implies that

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#Question id: 20041

#XL - P Chemistry

How many electrons in K (Z=19) have n=4 and 

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#Question id: 20042

#XL - P Chemistry

Suggest two transitions in hydrogen spectrum for which wave number ratio is 108:7

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#Question id: 20045

#XL - P Chemistry

The ratio of K.E. to P.E. of an electron in Bohr orbit of H like species is