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Chemistry (Charges (Proton: +1, Neutron:0, Electron:-1), Isotopes have…
Chemistry
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Isotopes have different mass numbers but the same atomic number. They have a different number of neutrons.
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Ionic bonding occurs between metals and non-metals. An ion is formed when an atom gains or loses electrons and becomes charged.
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Ionic bonding is the electrostatic attraction between two oppositely charged ions held together in a giant lattice
Ionic compounds are chemical compounds held together by electrostatic forces created with ionic bonding. It has a neutral overall charge
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Valency- the number of electrons needed to obtain a complete outer shell or the number of bonds it can form
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Metallic bonding is the electrostatic attraction between the positive metal ions and negative delocalised electrons. This attraction is strong so metallic compounds have high melting and boiling points. They are malleable because the layers slide and the electrons hold the shape. (Sea of electrons hold the ions together)
Limitations of bonding models: -Ball and stick diagrams, the atoms are too far apart
-Not life size
-Dot and cross suggests the electrons are different when they aren't
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The empirical formula shows the simplest whole number ratio of atoms or ions of each element in a compound
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