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Chemical Formulas and Chemical Compounds

Chemical Formulas and Chemical Compounds. Chapter 7. Chemical Formulas. Combinations of symbols are used to represent compounds of two or more elements. Also indicate the ratio of the number of atoms of each type of element in the compound.

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Chemistry SM-1131 Week 7 Lesson 1

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Periodic Trends Bellringer

Periodic Trends Bellringer. 1 ) Which has a larger size, a Mg atom or a Mg ion? 2) smaller ionization energy, K or Br? 3) smaller size, F atom or an I atom? 4) smaller electronegativity, O or Se? 5) less shielding, Ca or Sr ?. Answers. 1) Mg atom 2) K 3) F 4) Se 5) Ca.

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UNIT 3

UNIT 3. Molecules. Molecules. This is a molecule of water. Chemistry happens among the electrons. Bonds occur between atoms as a result of interactions among the electrons. When the interaction is to share electrons , the bond is said to be covalent and the entity formed is a molecule .

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Names & Formulas of Ionic Compounds

Names & Formulas of Ionic Compounds. Ionic compounds are named using the names of the ions that compose them. Cation name followed by anion name Learn the names and formulas of the ions in your syllabus. The following slides explain the systematic way that ions are named. Naming Cations.

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Nomenclature

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Chapter 4

Chapter 4. Nomenclature. 4.1 Naming M etal + Non Metal Compounds. Forms a binary ionic compound Made up of a cation (+ charge) and an anion(-charge) Two types of compound Some metals form only one type of cation

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