In which of the following is number of electrons the ion contains given correctly

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.

What is the amount of energy for a photon that has a 125 cm wavelength