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
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
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
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
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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