Metallic Bonding

Metals have a tendency to lose their valence electrons in order to achieve the stable noble gas configuration. We say that metals are electropositive (tendency to lose electrons). Step by step guide to metallic bonding Atoms in metals has valence electrons. The atoms pool all their valence electrons to form a “sea of electrons”. The …

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Macromolecules

Macromolecules are extremely large molecules which contains thousands of atoms in each molecules. Examples of macromolecule: Diamond, Graphite, Silica, Poly(ethene)   Diamond Diamond is made up of carbon atoms arranged in a tetrahedral structure as shown above. Notice that each carbon atom is bonded to four other carbon atoms. This is because carbon has four …

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Covalent Bonds

Covalent bonds are usually formed between atoms of non-metals. There is a sharing of electrons between the two atoms in order for them to achieve the stable noble gas configuration. Each atom contribute the same number of electrons for the bond If the two atoms share one pair of electrons, it is a single bond …

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Ionic Bonds

In ionic bonding, the participants are ions and they are kept together by the mutual force of attraction between oppositely charged ions. What are ions? Ions are charged particles which are formed when an atom loses or gains electrons Recall that atoms aim to achieve the stable noble gas configurations (having a fully filled valence …

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Elements, Compounds & Mixtures

Before we talk about the different types of chemical bonds, we will need to distinguish elements, compounds and mixtures from one another. Compound is formed when two or more different types of elements are chemically combined together. Difference between element and compound Element Compound Simplest form of matter Consists of two or more different types …

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