Earth's surface is shaped by many things. There are destructive processes at work, like weathering and erosion. Can you classify the agents that help to change Earth's surface? Drag the pictures to the correct column. ITEM BANK: Move to Bottom freezing and thawinglichenocean wavesurface waterwater and limestonewind Weathering Erosion

answer: h+ its less than oh

explanation:

i believe the answer is three water molecules

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.