Players read questions about energy levels and score points by picking the correct element as the answer. Electrons are in regions around the nucleus that are different distances away from the nucleus ...

The periodic table was arranged by atomic mass ... The idea behind the explanation is that when an electron falls from a higher energy level to a lower one, the energy is released as electromagnetic ...

Discover the history, structure, and importance of the periodic table of elements ... all have a full set of eight electrons in the highest-energy orbital, chemist William Reusch wrote on his ...

As you move from left to right across the periodic table, atoms have more electrons in their outer energy level and more protons in their nucleus. The greater attraction between the increased ...

Alkali metals: Alkali metals have a single electron in their outermost energy level, so they bond readily with other elements. They are typically soft enough to slice with a knife and are good ...

the periodic table, energy levels, and bonding to students. The Explore Science: Let's Do Chemistry kit is designed to stimulate interest, sense of relevance, and feelings of self-efficacy about ...