reativity of alkali metals increases down the group while reativity decreases down the group in helogens

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit