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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...
Atoms have a small nucleus surrounded by electrons. The Nucleus- It is in the middle of the atom It contains protons and electrons Protons are positively charged +1 Neutrons have n...
Water is a highly ordered material. When something dissolves in water, some of these O-H bonds are broken. This requires heat energy. The water molecules can then form attractive interactions to solute io...
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