@pandamille help her please!!!!
Answer:
How does the energy required to remove an electron from an atom change as you move left to right in Period 4 from potassium through iron? ... A greater nuclear charge pulls the electrons closer to the nucleus, decreasing the atomic radius.
you can learn who's blood it is, you can also see the blood patterns and how the crime maybe happened.
B,Si,Ge,As,Sb,Te, and At are all the metalloids on the periodic table of elements.
Answer:
a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
Hope this helps:)
