The periodic table of elements is one of the most significant tools in science, organizing all known chemical elements in a structured and meaningful way. It helps scientists understand element ...
How do we calculate mass and atomic numbers? VideoHow do we calculate mass and atomic numbers? This video is an interactive lesson in calculating an atom's mass and atomic number.
This video explains the periodic table, containing all the known elements arranged in groups and periods. Elements in the same group of the periodic table show trends in physical properties ...
She teaches science at Cobb Middle School and helped over 83% of her students achieve mastery in learning the elements of the periodic table. Brynn Wallace has been teaching for 23 years and has ...