Save guides, add subjects and pick up where you left off with your BBC account. The slideshow shows a covalent bond being formed between a hydrogen atom and a chlorine atom, to form hydrogen chloride.

This attraction pulls the atoms together and the electrons are shared by both atoms. The atoms bond because there is a strong enough attraction in both directions and room for the electrons in the ...

Small molecules - AQA A covalent bond is a shared pair of electrons. Covalent bonding forms molecules. Substances with small molecules have low melting and boiling points, and do not conduct ...

· The directional- and strong-bonding yields materials that are rigid and hard, with high melting points. The low melting points of polymers come from the secondary bonds linking the polymer chains.

According to information from the scientific journal Nature, a covalent bond that requires only a single electron is the first new type of chemical bond to be discovered in over ten years.

Prior to 2000, many drugs that formed a covalent bond with targets did so non-selectively, which often led to undesired side effects when compared to non-covalent drugs. This led to the belief that ...

Covalent drugs function by forming covalent bonds with specific amino acid residues, enabling sustained modulation of target proteins. Compared with cysteine-targeting strategies, lysine serves as ...

This next generation of 2D-2D heterostructures goes beyond van der Waals thanks to the strong covalent bonds between its 2D materials. Combining the best of different crystals to obtain the ...