Which of the following describes surface tension in water? choose 1 choose 1 (choice a) a surface tension occurs due to ionic bonding. (choice b) b surface tension is caused by water molecules repelling one another. (choice c) c surface tension allows water to support small objects if they are placed carefully on its surface. (choice d) d surface tension of water is weakened by hydrogen bonding.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este

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.