The average weighted atomic mass of magnesium is 24.305 amu. If the percent abundance of Mg-22 with an atomic mass of 22.445 amu is 18.30%, what is the atomic mass of the other isotope that is most common in nature?

1) this is the structure in the cell nucleus that houses a cell's genetic information

Drug abuse will not lead to physical and psychological dependence. true or false ?

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space