Which of these is an example of elemental carbon? a diamond b methane c proteins

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

There are main groups in the modern periodic table of elements

What is the molar mass of potassium nitrate, kno3