Element X has 3 natural isotopes. One has a mass of 11.99 amu and a relative abundance of 15.56%, the next has a mass of 10.89 amu and a relative abundance of 41.24%, and
the last has a mass of 12.25 amu and a relative abundance of 43.20%. Calculate the
average atomic mass.

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.