The Periodic Table
Akopọ
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.
Awọn Afojusun
- 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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Oriire fun ipari ẹkọ lori The Periodic Table. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
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- 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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Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
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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Abala ìwé ẹ̀kọ́
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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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa The Periodic Table? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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