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An atom has a nucleus that consists of neutral particles called neutrons and positively charged particles called protons. The nucleus is what gives the atom its mass. Around the nucleus there are shells f...
Covalent bonding is the interaction between two non-metals. The electrons in the outer shells are shared between the atoms involved in the bonding.
What is an isotope? (To ensure the students basic understanding on isotopes) Isotopes are different atomic forms of the same element, which have same number of protons but different numbe...
Though graphite and diamond are made of only carbon, they both have a different structure. The structure of Graphite consists of carbon atoms covalently bonded to...
Firstly we need to work out the molecular mass of CO2 . There is one carbon and two oxygens so we have to add the relative atomic mass (Ar) of one carbon and two oxygens. From the quest...
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