PLEASE HLP!! what is the answer

the size of the positive charge on the nucleus of a fluorine atom

12 is probably the typical age for a first kiss but i think its to young.

Ithink about 50 % of an original isotope's number of atoms remain

Hello! mitosis and meiosis are the same, because they are both ways of dividing cells and reproducing cells. they are different in many ways, but the main one is that meiosis splits the number of chromosomes in 1/2, while the number of chromosomes remains the same for mitosis. plus, meiosis has two stage of division, unlike mitosis, where it has only one.

Chromosomes can be used more than once atoms are all different