An electron in a hydrogen atom jumps from the n2 state into the n4 state. What is the energy of the photon?​

ice to water 1 water to vapour 2 latent heat

volts times amps 6 x 0.5 3w

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.