How does a thermos such as the one shown keep hot drinks hot? о
A. By limiting the amount of thermal energy that flows out of the
drink
B. By limiting the amount of cold that flows into the drink
C. By transmitting radiant energy into the thermos
D. By absorbing radiant energy that might enter the thermos

a. a clone will be physically identical to the original, but won’t be genetically identical

have a good day!

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.