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Relative formula mass is the mass compared  of the compound compared with the mass of atoms of other elements. 
Using the periodic table, the individual Ar (relative atomic mass) can help you find t...

Although both are... 1. Alltotropes of carbon, i.e. both are composed of carbon. 2. Giant covalent structures. Which are composed of non-metal aroms, held adjacently by c...

Elements react by gaining or losing electrons. Elements wants to reach the stable state of having 8 electrons in the outermost ring, so group 1 elements react by losing an electron, since they have only 1...

A covalent bond is formed when two atoms each share one electron, an example of a molecule that has covalent bonding is methane or CH₄. An ionic bond is where one (or more) atom donates an elec...

Reactivity will decrease as you travel down group 7 in the periodic table. Group 7 elements need to gain an electron to become stable as they need 8 electrons in their outer shell. Group 7 elements only c...