What is the element name for the atomic number 106 , 107 , 108​

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

The number at the end of an isotope’s name is the number.