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Bonds form between atoms within molecules and between the molecules themselves. The chemical
bonds that exist between atoms in molecules can be metallic, covalent (or dative covalent) and ionic
(or electrovalent). The bonds between these molecules really depend on charges of the atoms within
due to things such as…

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The phosphorous atom has 10 electrons in its outer shell, but it is
still stable as it has formed at a lower energy state than in its ion

Dative Covalent Bonds

Dative Covalent bonds are similar to ordinary covalent bonds but differ in the way they form. A

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has the largest value which means it has the greatest pull of all elements. The larger the
electronegative difference, the greater the bond polarity will be and more electrons will be at one

Some molecules do contain dipoles but no overall net charge. This is because the central charge…

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Na+ and Mg2+ have higher boiling points as it takes more energy to pull the ions apart and Mg2+ has
a greater pull on the outer electrons.

Tom Baker Chemistry 12ST1


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