HELP IS IT: A.
Model 2 is an isotope; Model 3 is an ion

B.
Model 1 is an ion; Model 3 is an isotope

C.
Model 1 is an isotope; Model 2 is an ion

D.
Model 1 is an ion; Model 2 is an isotope

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

How do you lengthen a pattern piece? (family and consumer science, sewing)

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5