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6.7 – Ionic Compounds
6.7 – Ionic Compounds

... an anion (negatively charged ion) that has a force of attraction in order to become a neutral charge overall. Properties of Ionic Compounds – Most ionic compounds are crystalline solids at room temperature. Ionic attractions result in high melting points. Most ionic compounds can dissolve in water t ...
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IGCSE Revision document

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Atomic Structure - WBR Teacher Moodle

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... Chemical Reaction: a process in which chemical bonds are broken and atoms rearranged. During the process a new substance is formed. Compound: 2 or more elements combined to make something new, Ex. Na (sodium) + Cl (chlorine) = NaCl (salt) Density:The measurement of how much mass of a substance is co ...
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8.3

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... Which of the following is an accurate comparison of the atomic number and mass of copper and gold? a. Au has a smaller atomic mass and fewer electrons than Cu b. Au has the same atomic mass as Cu but a greater atomic number c. Au has the same atomic number as Cu but a much greater atomic mass d. Au ...
Atomic Structure Worksheet
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Structure and Bonding
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Table of Contents - Free Coursework for GCSE, IGCSE, A Level, IB
Table of Contents - Free Coursework for GCSE, IGCSE, A Level, IB

... The Häber Process (Production of Ammonia) ............................................................................................................................ 20 Catalyst process (Production of Sulphuric Acid)................................................................................... ...
Atomic Theory
Atomic Theory

... The Häber Process (Production of Ammonia) ............................................................................................................................ 20 Catalyst process (Production of Sulphuric Acid)................................................................................... ...
File
File

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Unbinilium

Unbinilium /uːnbaɪˈnɪliəm/, also known as eka-radium or simply element 120, is the temporary, systematic element name of a hypothetical chemical element in the periodic table with the temporary symbol Ubn and the atomic number 120. Unbinilium and Ubn are the temporary systematic IUPAC name and symbol, until a permanent name is decided upon. In the periodic table of the elements, it is expected to be an s-block element, an alkaline earth metal, and the second element in the eighth period.To date, all attempts to synthesize this element have been unsuccessful. Its position as the seventh alkaline earth metal suggests that it would have similar properties to the alkaline earth metals, beryllium, magnesium, calcium, strontium, barium, and radium; however, relativistic effects may cause some of its properties to differ from those expected from a straight application of periodic trends. For example, unbinilium is expected to be less reactive than barium and radium and be closer in behavior to strontium, and while it should show the characteristic +2 oxidation state of the alkaline earth metals, it is also predicted to show the +4 oxidation state unknown in any other alkaline earth metal.
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