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In diamond, each carbon atom forms 4 strong covalent sigma bonds with other carbons, resulting in a tetrahedral 3D arrangement of atoms where all the electrons are fixed in place or localised. In graphite...

Sodium and Magnesium are both metals, when they are solid they form a metallic lattice held together by the electrostatic force of attractive between the positive metal ions, and the negative delocalised ...

So if we think about a molecule of ammonia, NH3, there are 3 hydrogens, each with 1 electron (as its atomic number is 1) covalently bonded to 1 nitrogen atom with 5 outer shell electrons on it due to its ...

In atoms, electrons arrange in different shells (K, L, M...), each holding a number of orbitals (s, p, d, f...). Each orbital holds a maximum of 2 electrons. In some circ...

Carbon dioxide causes global warming which consequently leads to enhanced melting of polar ice caps and rising sea levels. 

Carbon particles lead to formation of smog which blocks out sunlight and ...