The flashcard deck contains 45 interactive and responsive flashcards. The first 20 elements of the periodic table is neatly presented in 40 slides in a flashcard set-up. The face of the card contains the elements' symbol, atomic number and mass number. The second slide for each element represents the back of the flashcard and contains the element's name, number of protons, electrons, neutrons, as well as the number of energy levels. Present each card to your students and give them an opportunity