Please list the following for the Element, HYDROGEN Number of protons, number of electrons, and number of neutrons
Period number
Group number
Name of group to which it belongs (i. e., alkali metals, alkaline earth metals, halogens,
noble gases, and so on)

PLEASE INCLUDE ALL INFORMATION THANK YOU! WILL MARK BRAINLIEST IF ANSWERED CORRECTLY

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.