gamma radiation, which is emitted when the protons and neutrons inside the nucleus of an iron-57 atom adjust their positions, has a wavelength of 86 pm. calculate the energy of one photon of gamma radiation.

What produces wave a)sound b) heats c)transfer of energy d)vibrations

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.