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Descrição
FlashCards por TheCookingCardsman, atualizado more than 1 year ago
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Criado por TheCookingCardsman
aproximadamente 10 anos atrás
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| Questão | Responda |
| Why do atoms bond? | This is due to the Octet Rule, which states that atoms want to have 8 electrons in their outermost energy level, because they want to be more stable. This can be done by gaining or losing electrons, Ionic Bonding, or Sharing Electrons, Covalent Bonding. |
| What type of a bond is a result of sharing valence electrons? | A Covalent Bond |
| How does a Molecule form? | When two or more atoms bond covalently |
| The majority of covalent bonds form between what type of elements? | non-metallic elements |
| What are the diatomic molecules, and why do exist in this way? | The diatomic molecules are: Hydrogen (H₂), Nitrogen(N₂), Oxygen(O₂), Fluorine(F₂) Chlorine(Cl₂), Bromine(Br₂) and Iodine(I₂) They are formed when two atoms of each element shares electrongs. They exist this way becuase two-atom molecules are more stable than individual atoms |
| What is a Single Covalent Bond? | A Covalent Bond in which only one pair of electrons is shared (E.X. hydrogen molecule) |
| What is the shared electron pair referred to as? | the bonding pair |
| How can we represent the arrangement of electrons in a molecule? | By using a Lewis Structure (similar to electron dot diagrams). E.X. H:H |
| What is a Sigma Bond? | A Sigma Bond is a single covalent bond. It occurs when two atoms have their valence atomic orbitals overlap end to end, concentrating the electron sin a bonding orbital between the two atoms. This is a localized region where electrons are most likely to be found. |
| When does a double covalent bond occur? | Forms when two pairs of electrons are shared between atoms. (E.X. Oxygen) |
| When does a triple covalent bond form? | When three pairs of electrons are shared between two atoms.(E.X. Nitrogen) |
| What is a Pi Bond? | ... |
| How do you name molecular compounds. | There are several steps. Following the following is the best way to organize it: Step 1: Look at the Formula of the molecule Step 2: Does the compound form an acidic aqueous solution? If yes, go to step 3. If no, go to step 4. Step 3: Name as an acid. Is there an oxygen present in the compound? If yes, go to step 5. If no go to step 6. Step 4: Name the first element in the molecule. Use a prefix based on the number of atoms present.. To name the second element, indicate the number of atoms present by using a prefix, and and the rood word -ide, to the second element. You are done. Step 5: Root of oxyanion present + -ic if the anion ends in -ate, or -ous, if the anion ends in -ite, then acid. You are done Step 6. Hydro + root of second element + -ic, then acid. You are done. |
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