two stable isotopes of lithium and have
Two stable isotopes of lithium and have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium. Ans)(6.01512*7.5/100)+(7.01600*92.5/100)=6.940934
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accelaration is the rate of change of velocityit defines how velocity is chaging with respect to
a boy standing in the middle of a field observes a flying bird in the north at an angle of elevation fo 30 degree and after 2 min he observes the
sin10sin20sin30sin3600sin10sin20sin30sin40sin180sin360-170sin360-40sin360-30sin360-20sin360-10sin360sin360-x-sinxhence all terms cancel and
if tanxsecxsqr rt 3 0ltxlt180 then x is equal toans
two stable isotopes of lithium and have respective abundances of 75 and 925 these isotopes have masses 601512 u and 701600 u respectively find the
the points abc and d represent the numbers z1z2z3 and z4abcd is rhombusac2bdif z22i z41-2ifind z1 and z3ans poi of diagonals 3-i2using concept of
during a flame test why is calciums flame not persistent while that of strontium isans because it does not have many ions as compared to the
what is the principal value branch of iians principal value branch of
i have tried to do an experiment where i tried to check the direction of the net force by water on a body i have some question regarding some
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