9pt The atomic mass of silver is 107.87. Silver has two very abundant isotopes occurring in almost equal proportions, along with a number of very rare isotopes. Which are most likely to be the atomic masses of the two most abundant isotopes of silver?
O A. 105.91, 106.91
OB. 105.91. 108.90
O C. 106.91, 108.90
OD. 106.91, 109.91

Acovalent bond is formed between the two hydrogen bonds

Fine out you self hx

Answer : option a) 84explanation :

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.

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.