As scientist have learned more about atoms, models of atoms have changed. one of the first atomic models was a solid ball, such as a marble. What are two limitations of using a marble to model an atom?

A. The model is much harder to see than a real atom.

B. The model is not made of commonly available material or objects.

C. The model does not show the true size of an atom

D. The model does not move or behave like a real atom.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;

i think its y= -4x-14