WILL VOTE BEST & GIVE 15 POINTS When
you
walked in to Mrs. Bateast's lab today, you noticed that your partner group had a 0.05432
ml mixture sample of sand and water in a beaker. When your group began the lab to separate the
mixture in to different weight boats, you thought it would be very difficult to remove the sand. As a
result, you added another 5.2ml of water to assist with removing it.

Determine The number of significant figures in your original sample.

catya your not at all which answer i've seen you do this on another question!

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.