Which two minerals on the hardness scale can be scratched by a fingernail?

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

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

What diagram shows the ionic compound of magnesium oxide