The Periodic Table
Gbogbo ọrọ náà
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.
Ebumnobi
- 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
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
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Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
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Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na The Periodic Table. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- 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
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Mụtakwuo ihe site na isi mmalite mepere emepe
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Akụkụ akwụkwọ
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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Akụkụ akwụkwọ
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
Ndị otu ndị ọzọ bipụtara ha n'okpuru ikike mepere emepe, anyị na-ekele ha dị ka ha si chọọ. Njikọ na-emepe saịtị ha.
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara The Periodic Table? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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