What would you have to do to develop a theory of atoms?

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

What three things determine the shape and size of a puddle when water is poured out onto a surface