Which of the following is the most recent addition to the accepted model of the atom?

A. Elections from a cloud around the nucleus.

B. Neutrons orbit the nucleus along circular.

C. Protons are located in the nucleus.

D. Atoms are indivisible particles.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d