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

neutrons, electrons, and energy levels in atoms and their location in the periodic table. Students will also explore covalent and ionic bonding.

Scientists’ ideas about atoms have changed over time. Today, they agree that atoms have a positively-charged nucleus made of protons and neutrons, and negatively-charged electrons that orbit the ...

In this collection of GCSE chemistry revision videos, we explore the many aspects of the periodic table including ... Explore ionic bonding, covalent bonding, nanoscience and smart materials ...