Diamond is one of the hardest materials known to man, but experts think it can be squashed into something even harder. The ...

Diamond is thought to be so hard because of its atomic structure. It's arranged in a tetrahedral lattice – each carbon atom within it is tetrahedrally linked to its four closest neighbors ...

because while diamond forms with a tetrahedral arrangement in its carbon lattice (known as diamond cubic), lonsdaleite forms a hexagonal one that increases thermal stability and hardness.

Knowledge of basic concepts from general chemistry How to draw organic molecules in line-angle formula using wedges and dashes to represent tetrahedral carbon atoms. Students will need to download ...

Carbon tetrachloride has four polar covalent bonds. It is a tetrahedral molecule, so the charges are symmetrical. The \(\delta+\) part of the molecule (the carbon atom) is locked away at the ...