When should else be used in programming? Group of answer choices

if something should be repeated several times

in a non-conditional statement

to describe what should happen when the condition of an if statement isn’t met

to begin an infinite loop

Scientists have changed the model of the atom as they have gathered new evidence. one of the atomic models is shown below. what experimental evidence led to the development of this atomic model from the one before it? a few of the positive particles aimed at a gold foil seemed to bounce back. the colors of light emitted from heated atoms had very specific energies. experiments with water vapor showed that elements combine in specific proportions. cathode rays were bent in the same way whenever a magnet was brought near them.