This symbol represents a particular isotope of carbon. the number 6 is the atomic number. what does this tell us about the isotope?

Ared apple is illuminated by a blue light the apple will appear

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

Which transition by an electron will release the greatest amount of energy? oa ob oc od