Ions And Ionic Bonds
Gbogbo ọrọ náà
Common salt, the white crystals you sprinkle on food, is held together by one of the strongest forces in chemistry. It is made not of molecules but of charged particles called ions, locked together by their opposite charges. This ionic bonding is how most metals join with non-metals.
In this lesson you will learn how atoms become ions by losing or gaining electrons, why they do so, and how the attraction between oppositely charged ions forms an ionic bond. You will use sodium chloride as the key example.
Ebumnobi
- Describe the formation of positive ions, known as cations, and negative ions, known as anions.
- State that an ionic bond is a strong electrostatic attraction between oppositely charged ions.
- Describe the formation of ionic bonds between elements from Group I and Group VII, including the use of dot-and-cross diagrams.
- Describe the properties of ionic compounds: (a) h igh melting points and boiling points (b) g ood electrical conductivity when aqueous or molten and poor when solid.
- [Supplement] Describe the giant lattice structure of ionic compounds as a regular arrangement of alternating positive and negative ions.
- [Supplement] Describe the formation of ionic bonds between ions of metallic and non-metallic elements, including the use of dot-and-cross diagrams.
- [Supplement] Explain in terms of structure and bonding the properties of ionic compounds: (a) high melting points and boiling points (b) g ood electrical conductivity when aqueous or molten and poor when solid.
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 Ions And Ionic Bonds. 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.
- A positive ion is formed when an atom: A. Gains electrons B. Loses electrons C. Gains protons D. Loses protons Answer: B
- An ionic bond is the attraction between: A. Two atoms sharing electrons B. Oppositely charged ions C. Identical ions D. Molecules Answer: B
- When sodium reacts with chlorine, the sodium atom: A. Gains one electron B. Loses one electron C. Shares one electron D. Loses one proton Answer: B
- What is the charge on a magnesium ion, formed from an atom with arrangement 2, 8, 2? A. 1+ B. 2+ C. 1- D. 2- Answer: B
- Ionic bonds usually form between: A. Two non-metals B. Two metals C. A metal and a non-metal D. Two gases Answer: C
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 Ions And Ionic Bonds? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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