The Periodic Table
Bayani Gaba-gaba
The Periodic Table is chemistry's most powerful reference tool. Over a hundred elements are arranged in a single chart that reveals patterns in their properties, predicts how they react, and connects directly to the electron configurations you studied in the previous topic.
In this lesson you will learn how the table is organised by atomic number, groups and periods, deduce electronic configurations for the first twenty elements, classify metals and non-metals by their properties, and discover why elements in the same group share similar chemistry.
Manufura
- understand how elements are arranged in the Periodic Table: - in order of atomic number - in groups and periods.
- understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table
- understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals
- identify an element as a metal or a non-metal according to its position in the Periodic Table
- understand how the electronic configuration of a main group element is related to its position in the Periodic Table
- understand why elements in the same group of the Periodic Table have similar chemical properties
- understand why the noble gases (Group 0) do not readily react
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Nazarin Darasi
Barka da kammala darasi akan The Periodic Table. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Elements in the Periodic Table are arranged in order of increasing: A) Mass number B) Relative atomic mass C) Atomic number D) Number of neutrons Answer: C
- An element has the electronic configuration 2.8.2. Which group is it in? A) Group 2 B) Group 8 C) Group 12 D) Group 0 Answer: A
- Which of the following is a property of non-metals? A) Good electrical conductors B) Malleable C) Form acidic oxides D) High melting points Answer: C
- The noble gases are unreactive because they have: A) No electrons B) Full outer electron shells C) No neutrons D) An equal number of protons and neutrons Answer: B
- As you go down Group 1, the elements become: A) Less reactive B) More reactive C) Less metallic D) Harder Answer: B
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Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
The Periodic Table
State the periodic law and explain the organization of elements in the periodic table
"Chemistry: The Periodic Table" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/2-5-the-periodic-table. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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Sashen littafi
Electronic Structure of Atoms (Electron Configurations)
Derive the predicted ground-state electron configurations of atoms
"Chemistry: Electronic Structure of Atoms (Electron Configurations)" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/6-4-electronic-structure-of-atoms-electron-configurations. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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