4ESO FiQ 2016-2017 ENGLISH (from article 47).

4ESO Física i Química , ARTICLE 58 : Atomic and mass numbers.

                                                   

                                                          ATOMIC NUMBER AND MASS NUMBER.

                       (Information got from https://global.britannica.com/science/chemical-element)

- Atomic number (Z) , the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number. An atom of iron has 26 protons in its nucleus; therefore the atomic number of iron is 26.

In the symbol representing a particular nuclear or atomic species, the atomic number may be indicated as a left subscript. 

Mass number (A) , in nuclear physics, the sum of the numbers of protons and neutrons present in the nucleus of an atom. The mass number is commonly cited in distinguishing among the isotopes of an element, all of which have the same atomic number (number of protons) and are represented by the same literal symbol; for example, the two best known isotopes of uranium (those with mass numbers 235 and 238) are designated uranium-235 (symbolized ²³⁵U) and uranium-238 (²³⁸U).

4ESO Física i Química , ARTICLE 57 : ATOMIC ORBITALS MIXED, HYBRIDS MOLECULAR ORBITALS.

4ESO Física i Química , ARTICLE 55 : ATOMIC ORBITALS SHAPE 2.

4ESO Física i Química , ARTICLE 56 : ATOMIC ORBITALS SHAPE 3.

4ESO Física i Química , ARTICLE 54 : ATOMIC ORBITALS SHAPE 1.

4ESO Física i Química , ARTICLE 53 : PERIODIC TABLE FAMILY NAMES.

- Check here the names of each family from the periodic table :

    http://chemistry.bd.psu.edu/jircitano/names.html

 - And here you have another periodic table with family elements names including metalloids :

                                         Family elements names.

4ESO Física i Química , ARTICLE 52 : ELECTRONIC CONFIGURATION OF AN ELEMENT FROM THE PERIODIC TABLE.

- Watch this video in order to practice how to make an electronic configuration :

 

        https://www.khanacademy.org/science/chemistry/electronic-structure-of-atoms/electron-configurations-jay-sal/v/electron-configurations-2

- At the following webpage you can read, step by step, about how to write whatever electronic configuration of any element you want :

         http://www.wikihow.com/Write-Electron-Configurations-for-Atoms-of-Any-Element

4ESO Física i Química , ARTICLE 51 : LESSON 1. SECTION 3. Binary chemical compounds and formulas.

                                                               LESSON 1 . SECTION 3.

                                                        Binary compounds formulation.

 - Look up the following links :

 1. https://www.youtube.com/watch?v=URc75hoKGLY

 2. http://study.com/academy/lesson/writing-ionic-compound-formulas-binary-polyatomic-compounds.html

 3. You can check every oxid formula you want at the following web :

                      https://www.americanelements.com/oxides.html

                                               Naming binary compounds. (NOMENCLATURE).

- Look up the next link in 1 and watch the videos in 2 and 3 :

 1. http://www.personal.kent.edu/~cearley/gen50/Naming/naming.htm

 2. http://study.com/academy/lesson/naming-ionic-compounds-simple-binary-transition-metal-polyatomic-ion-compounds.html

 3. https://www.youtube.com/watch?v=4HOiJpNVM8Q

 4. https://www.youtube.com/watch?v=4bVW2DJrqy0

 5. https://www.youtube.com/watch?v=072lYkLlVYw

 6. https://www.youtube.com/watch?v=vMY7jD4klkY

 7. https://www.youtube.com/watch?v=DejkvR4pvRw

- To name ionic compounds the next link can be useful :

  http://www.ausetute.com.au/namiform.html

- About Hydrides :

  http://wps.prenhall.com/wps/media/objects/4680/4792638/ch14_05.htm