1 / 8

OD ATOMOV DO IONOV

OD ATOMOV DO IONOV.

arwen
Télécharger la présentation

OD ATOMOV DO IONOV

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. OD ATOMOV DO IONOV Atomi, ki nimajo polno zasedene zunanje lupine, sprejemajo ali oddajajo zunanje elektrone. Tako preidejo v stabilno stanje. Atomi, ki imajo na zunanji lupini enega, dva ali tri zunanje elektrone, jih oddajo in postanejo pozitivno nabiti. Atomi, ki imajo na zunanji lupini pet, šest ali sedem zunanjih elektronov, da napolnijo lupino, sprejmejo tri, dva ali en zunanji elektron. Postanejo negativno nabiti delci. Pozitivno in negativno nabite delce imenujemo ioni.

  2. NASTANEK KATIONOV • Če nevtralni atom odda elektrone, nastane pozitivno nabiti ion – KATION. Naboj iona zapišemo ob simbolu desno zgoraj.

  3. NASTANEK ANIONOV • Če nevtralni atom sprejme elektrone, nastane negativno nabiti ion – ANION. • Naboj iona zapišemo ob simbolu desno zgoraj.

  4. Li → Li+ + 1e− (litijev ion) Mg → Mg2+ + 2e− (magnezijev ion) Al → Al3+ + 3e− (aluminijev ion) N + 3e− → N3− (nitridni ion) O + 2e− → O2− (oksidni ion) F + 1e− → F−(fluoridni ion) PRIMERI ANIONOV IN KATIONOV

  5. http://www.osbos.si/e-kemija/e-gradivo/3-sklop/utrjevanje2.htmlhttp://www.osbos.si/e-kemija/e-gradivo/3-sklop/utrjevanje2.html Reši naloge, ki jih najdeš na internetni strani

More Related