The period of an element is the amount of time is it takes for half of radioactive isotope to decay. true or false? if false, make a statement true

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.