Students look more deeply into the structure of the atom and play a game to better understand the relationship between protons, neutrons, electrons, and energy levels in atoms and their location in ...

Across a period from left to right, the covalent radius decreases. As you move from left to right across the periodic table, atoms have more electrons in their outer energy level and more protons ...

The electrons in the covalent bond are shared equally between the two oxygen ... and accurately reproduces both molecules' energies and chemical reactions. The periodic table's most electronegative ...

For example, a question about fertilisers could include ideas about covalent substances ... Two elements in group 1 of the periodic table are lithium and sodium. Very small pieces of lithium ...