Wrap up/Launch

Using the periodic table, determine element's name and symbol, the number of valence, core and total electrons, the group and period number and other elements with the same valence electrons for the element with atomic number of 34.

Valence electrons are the number of electrons in the outermost energy level and are related to group the element is found. Core electrons are all the electrons found in the inner shells and are related to the period the element is found.