Help me with this pls.

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

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true