| 1. |
info: 2025-04-26 01:57:00.212 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
7ms [Parameters=[@p7='5d182889-6ebb-4bf2-ba22-bf82faf34c5c', @p0='True', @p1='False', @p2='1', @p3='8715fd29-e024-497c-aa21-e633338b14e0', @p4='54.jpg' (Size = 100), @p5='https://knowledgenest.blob.core.windows.net/scanners/0/[Chemija][Bendroji ir neorganinė chemija 12 klasė][Vadovėlis]/pages/54.jpg' (Size = 1000), @p6='tūryje. Ši laisvųjų elektronų („elektronų jūra“) ir teigiamųjų metalo jonų elektrostatinė sąveika ir lemia tvirtus ryšius tarp metalo jonų. Tai būdinga metališkajam ryšiui.
Delokalizavimas – reiškinys, priešingas lokalizavimui. Lokalizavimas – reiškinio, proceso vyksmo apribojimas arba vietos, ribų nustatymas, radimas.
Metališkasis ryšys susidaro tik kietosios ir skystosios būsenos metaluose.
Metalų kristaluose ryšio stiprumas priklauso nuo to, kiek valentinių elektronų gali atiduoti kiekvienas atomas. Pavyzdžiui, ketvirtojo periodinės elementų sistemos periodo K, Ca, Sc, Ti, V ir Cr atomai gali atiduoti 1, 2, 3, 4, 5 ir 6 elektronus. Ryšio stiprumas didėja nuo kalio chromo link, taip didėja ir metalų stiprumas bei jų lydymosi temperatūra, mažėja atstumas tarp jonų. Šios savybės nekinta nuo Mn iki Ni.
Grynai metališkasis ryšys būdingas tik šarminiams ir šarminių žemių metalams. Kitų metalų, ypač *d* elementų, fizikinės savybės rodo, kad *d* orbitalių sąveika yra kovalentinė.
Metališkasis ryšys panašus į kovalentinį – jį lemia valentiniai elektronai. Skirtumas tas, kad metališkuoju ryšiu jungiasi elektronai, bendri visiems metalo jonams, o kovalentiniu – tik po du elektronus, sudarančius bendrąją porą.
Įdomu. Kalifornijos universiteto (Deivisas, JAV) chemikai sukūrė pirmą stabilųjį junginį, kuriame tarp dviejų chromo jonų yra penkiagubasis ryšys. Chemijos istorijoje buvo žinomi tik viengubieji, dvigubieji ir trigubieji ryšiai. Šie atomų ryšiai yra ypač svarbūs organiniuose junginiuose, tačiau teoriškai tik kai kurie metalai gali sudaryti stipresnius negu trigubuosius ryšius. Chromo junginys yra stabilus kambario temperatūroje, tačiau skyla veikiamas vandeniu ir savaime užsidega veikiamas oru. Gamindami junginį, mokslininkai prie chromo atomų prijungė didelių organinių molekulių – taip suvaržė chromo „laisvę“. Paskui jie sugebėjo priversti metalo atomus jungtis tarpusavyje. Penkiagubasis ryšys tarp chromo jonų patvirtintas atlikus kristalografinę rentgeno analizę ir magnetinius matavimus.' (Size = 4000)], CommandType='Text', CommandTimeout='30']
SET IMPLICIT_TRANSACTIONS OFF;
SET NOCOUNT ON;
UPDATE [ScannerPages] SET [Active] = @p0, [Deleted] = @p1, [Position] = @p2, [ScannerId] = @p3, [StorageMediaName] = @p4, [StorageMediaUrl] = @p5, [Text] = @p6
OUTPUT 1
WHERE [Id] = @p7;
|
| 2. |
info: 2025-04-26 01:57:00.528 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
3ms [Parameters=[@__id_0='5c746b3e-3a9e-36a0-e5c2-5ceae4bdf6cf', @__site_Id_1='63d6eb4e-8e39-4ac6-8f69-55ee76feccce'], CommandType='Text', CommandTimeout='30']
SELECT [c].[Id], [c].[Active], [c].[Deleted], [c].[Description], [c].[DescriptionBackup], [c].[Left], [c].[ParentId], [c].[Position], [c].[ProcessorGenerateImagePrompt], [c].[Right], [c].[SiteId], [c].[StorageMediaName], [c].[StorageMediaUrl], [c].[Title], [c].[TitleBackup], [c].[TitleSlug], [c].[TotalChildren], [c].[TotalScanners], [c].[TotalYoutubeVideos]
FROM [Categories] AS [c] WITH (NOLOCK)
WHERE [c].[Id] = @__id_0 AND [c].[SiteId] = @__site_Id_1 AND [c].[Active] = CAST(1 AS bit) AND [c].[Deleted] = CAST(0 AS bit)
ORDER BY [c].[Id]
|
| 3. |
info: 2025-04-26 01:57:00.535 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
6ms [Parameters=[@__id_0='5c746b3e-3a9e-36a0-e5c2-5ceae4bdf6cf', @__site_Id_1='63d6eb4e-8e39-4ac6-8f69-55ee76feccce'], CommandType='Text', CommandTimeout='30']
SELECT [c4].[Id], [c4].[Active], [c4].[Deleted], [c4].[Description], [c4].[DescriptionBackup], [c4].[Left], [c4].[ParentId], [c4].[Position], [c4].[ProcessorGenerateImagePrompt], [c4].[Right], [c4].[SiteId], [c4].[StorageMediaName], [c4].[StorageMediaUrl], [c4].[Title], [c4].[TitleBackup], [c4].[TitleSlug], [c4].[TotalChildren], [c4].[TotalScanners], [c4].[TotalYoutubeVideos], [c].[Id]
FROM [Categories] AS [c] WITH (NOLOCK)
INNER JOIN (
SELECT [c0].[Id], [c0].[Active], [c0].[Deleted], [c0].[Description], [c0].[DescriptionBackup], [c0].[Left], [c0].[ParentId], [c0].[Position], [c0].[ProcessorGenerateImagePrompt], [c0].[Right], [c0].[SiteId], [c0].[StorageMediaName], [c0].[StorageMediaUrl], [c0].[Title], [c0].[TitleBackup], [c0].[TitleSlug], [c0].[TotalChildren], [c0].[TotalScanners], [c0].[TotalYoutubeVideos]
FROM [Categories] AS [c0] WITH (NOLOCK)
WHERE [c0].[Active] = CAST(1 AS bit) AND [c0].[Deleted] = CAST(0 AS bit)
) AS [c4] ON [c].[Id] = [c4].[ParentId]
WHERE [c].[Id] = @__id_0 AND [c].[SiteId] = @__site_Id_1 AND [c].[Active] = CAST(1 AS bit) AND [c].[Deleted] = CAST(0 AS bit)
ORDER BY [c].[Id], [c4].[Position], [c4].[Id]
|
| 4. |
info: 2025-04-26 01:57:00.544 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
9ms [Parameters=[@__id_0='5c746b3e-3a9e-36a0-e5c2-5ceae4bdf6cf', @__site_Id_1='63d6eb4e-8e39-4ac6-8f69-55ee76feccce'], CommandType='Text', CommandTimeout='30']
SELECT [s5].[ScannerId], [s5].[CategoryId], [s5].[Id], [s5].[Active], [s5].[CheatSheet], [s5].[CheatSheet2], [s5].[Deleted], [s5].[FactErrors], [s5].[FactErrorsExplanation], [s5].[ParentCategory2Id], [s5].[ParentCategoryId], [s5].[ProcessorGenerateImagePrompt], [s5].[Prompt], [s5].[Reference], [s5].[ReferenceSlug], [s5].[SiteId], [s5].[SpellingErrors], [s5].[SpellingErrorsExplanation], [s5].[Summary], [s5].[Title], [s5].[TitleBackup], [s5].[TitleSlug], [s5].[TotalCards], [s5].[TotalCards2], [s5].[TotalCategories], [s5].[TotalPages], [s5].[Verified], [c].[Id]
FROM [Categories] AS [c] WITH (NOLOCK)
INNER JOIN (
SELECT [c3].[ScannerId], [c3].[CategoryId], [s1].[Id], [s1].[Active], [s1].[CheatSheet], [s1].[CheatSheet2], [s1].[Deleted], [s1].[FactErrors], [s1].[FactErrorsExplanation], [s1].[ParentCategory2Id], [s1].[ParentCategoryId], [s1].[ProcessorGenerateImagePrompt], [s1].[Prompt], [s1].[Reference], [s1].[ReferenceSlug], [s1].[SiteId], [s1].[SpellingErrors], [s1].[SpellingErrorsExplanation], [s1].[Summary], [s1].[Title], [s1].[TitleBackup], [s1].[TitleSlug], [s1].[TotalCards], [s1].[TotalCards2], [s1].[TotalCategories], [s1].[TotalPages], [s1].[Verified]
FROM [CategoryScanners] AS [c3]
INNER JOIN [Scanners] AS [s1] ON [c3].[ScannerId] = [s1].[Id]
WHERE [s1].[Active] = CAST(1 AS bit) AND [s1].[Deleted] = CAST(0 AS bit)
) AS [s5] ON [c].[Id] = [s5].[CategoryId]
WHERE [c].[Id] = @__id_0 AND [c].[SiteId] = @__site_Id_1 AND [c].[Active] = CAST(1 AS bit) AND [c].[Deleted] = CAST(0 AS bit)
ORDER BY [c].[Id], [s5].[Id], [s5].[ScannerId], [s5].[CategoryId]
|
| 5. |
info: 2025-04-26 01:57:00.554 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
7ms [Parameters=[@__id_0='5c746b3e-3a9e-36a0-e5c2-5ceae4bdf6cf', @__site_Id_1='63d6eb4e-8e39-4ac6-8f69-55ee76feccce'], CommandType='Text', CommandTimeout='30']
SELECT [s6].[Id], [s6].[Active], [s6].[Context], [s6].[ContextBackup], [s6].[ContextStorageMediaName], [s6].[ContextStorageMediaUrl], [s6].[Deleted], [s6].[FactErrors], [s6].[FactErrorsExplanation], [s6].[Facts], [s6].[FactsBackup], [s6].[FactsStorageMediaName], [s6].[FactsStorageMediaUrl], [s6].[Position], [s6].[ProcessorGenerateImagePrompt], [s6].[Prompt], [s6].[ScannerId], [s6].[SpellingErrors], [s6].[SpellingErrorsExplanation], [s6].[StorageMediaName], [s6].[StorageMediaUrl], [s6].[Summary], [s6].[SummaryBackup], [s6].[SummaryStorageMediaName], [s6].[SummaryStorageMediaUrl], [s6].[Title], [s6].[TitleSlug], [s6].[TotalFillTheBlankSelectionQuestions], [s6].[TotalMultipleSelectionQuestions], [s6].[TotalOrderingQuestions], [s6].[TotalQuestionPoints], [s6].[TotalQuestions], [s6].[TotalShortAnswerQuestions], [s6].[TotalSingleSelectionQuestions], [s6].[TotalSources], [s6].[TotalTrueFalseQuestions], [s6].[Verified], [s6].[Version], [c].[Id], [s5].[ScannerId], [s5].[CategoryId], [s5].[Id]
FROM [Categories] AS [c] WITH (NOLOCK)
INNER JOIN (
SELECT [c3].[ScannerId], [c3].[CategoryId], [s1].[Id]
FROM [CategoryScanners] AS [c3]
INNER JOIN [Scanners] AS [s1] ON [c3].[ScannerId] = [s1].[Id]
WHERE [s1].[Active] = CAST(1 AS bit) AND [s1].[Deleted] = CAST(0 AS bit)
) AS [s5] ON [c].[Id] = [s5].[CategoryId]
INNER JOIN (
SELECT [s2].[Id], [s2].[Active], [s2].[Context], [s2].[ContextBackup], [s2].[ContextStorageMediaName], [s2].[ContextStorageMediaUrl], [s2].[Deleted], [s2].[FactErrors], [s2].[FactErrorsExplanation], [s2].[Facts], [s2].[FactsBackup], [s2].[FactsStorageMediaName], [s2].[FactsStorageMediaUrl], [s2].[Position], [s2].[ProcessorGenerateImagePrompt], [s2].[Prompt], [s2].[ScannerId], [s2].[SpellingErrors], [s2].[SpellingErrorsExplanation], [s2].[StorageMediaName], [s2].[StorageMediaUrl], [s2].[Summary], [s2].[SummaryBackup], [s2].[SummaryStorageMediaName], [s2].[SummaryStorageMediaUrl], [s2].[Title], [s2].[TitleSlug], [s2].[TotalFillTheBlankSelectionQuestions], [s2].[TotalMultipleSelectionQuestions], [s2].[TotalOrderingQuestions], [s2].[TotalQuestionPoints], [s2].[TotalQuestions], [s2].[TotalShortAnswerQuestions], [s2].[TotalSingleSelectionQuestions], [s2].[TotalSources], [s2].[TotalTrueFalseQuestions], [s2].[Verified], [s2].[Version]
FROM [ScannerCards] AS [s2]
WHERE [s2].[Active] = CAST(1 AS bit) AND [s2].[Deleted] = CAST(0 AS bit)
) AS [s6] ON [s5].[Id] = [s6].[ScannerId]
WHERE [c].[Id] = @__id_0 AND [c].[SiteId] = @__site_Id_1 AND [c].[Active] = CAST(1 AS bit) AND [c].[Deleted] = CAST(0 AS bit)
ORDER BY [c].[Id], [s5].[Id], [s5].[ScannerId], [s5].[CategoryId], [s6].[TitleSlug], [s6].[Id]
|
| 6. |
info: 2025-04-26 01:57:00.557 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
2ms [Parameters=[@__id_0='5c746b3e-3a9e-36a0-e5c2-5ceae4bdf6cf', @__site_Id_1='63d6eb4e-8e39-4ac6-8f69-55ee76feccce'], CommandType='Text', CommandTimeout='30']
SELECT [q0].[Id], [q0].[Active], [q0].[Created], [q0].[Deleted], [q0].[Points], [q0].[ProcessorGenerateImagePrompt], [q0].[ScannerCardId], [q0].[StorageMediaName], [q0].[StorageMediaUrl], [q0].[Title], [q0].[TotalAnswers], [q0].[Type], [c].[Id], [s5].[ScannerId], [s5].[CategoryId], [s5].[Id], [s6].[Id]
FROM [Categories] AS [c] WITH (NOLOCK)
INNER JOIN (
SELECT [c3].[ScannerId], [c3].[CategoryId], [s1].[Id]
FROM [CategoryScanners] AS [c3]
INNER JOIN [Scanners] AS [s1] ON [c3].[ScannerId] = [s1].[Id]
WHERE [s1].[Active] = CAST(1 AS bit) AND [s1].[Deleted] = CAST(0 AS bit)
) AS [s5] ON [c].[Id] = [s5].[CategoryId]
INNER JOIN (
SELECT [s2].[Id], [s2].[ScannerId], [s2].[TitleSlug]
FROM [ScannerCards] AS [s2]
WHERE [s2].[Active] = CAST(1 AS bit) AND [s2].[Deleted] = CAST(0 AS bit)
) AS [s6] ON [s5].[Id] = [s6].[ScannerId]
INNER JOIN (
SELECT [q].[Id], [q].[Active], [q].[Created], [q].[Deleted], [q].[Points], [q].[ProcessorGenerateImagePrompt], [q].[ScannerCardId], [q].[StorageMediaName], [q].[StorageMediaUrl], [q].[Title], [q].[TotalAnswers], [q].[Type]
FROM [Questions] AS [q]
WHERE [q].[Active] = CAST(1 AS bit) AND [q].[Deleted] = CAST(0 AS bit)
) AS [q0] ON [s6].[Id] = [q0].[ScannerCardId]
WHERE [c].[Id] = @__id_0 AND [c].[SiteId] = @__site_Id_1 AND [c].[Active] = CAST(1 AS bit) AND [c].[Deleted] = CAST(0 AS bit)
ORDER BY [c].[Id], [s5].[Id], [s5].[ScannerId], [s5].[CategoryId], [s6].[TitleSlug], [s6].[Id], [q0].[Id]
|
| 7. |
info: 2025-04-26 01:57:00.574 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
17ms [Parameters=[@__id_0='5c746b3e-3a9e-36a0-e5c2-5ceae4bdf6cf', @__site_Id_1='63d6eb4e-8e39-4ac6-8f69-55ee76feccce'], CommandType='Text', CommandTimeout='30']
SELECT [s7].[TagId], [s7].[ScannerCardId], [s7].[Id], [s7].[Active], [s7].[Created], [s7].[Deleted], [s7].[Description], [s7].[Links], [s7].[MediaSourceCopyright], [s7].[MediaSourceUrl], [s7].[ShortDescription], [s7].[SiteId], [s7].[StorageMediaName], [s7].[StorageMediaUrl], [s7].[Title], [s7].[TitleSlug], [s7].[Url], [s7].[Wikipedia], [s7].[WikipediaPageId], [s7].[WikipediaUpdated], [c].[Id], [s5].[ScannerId], [s5].[CategoryId], [s5].[Id], [s6].[Id]
FROM [Categories] AS [c] WITH (NOLOCK)
INNER JOIN (
SELECT [c3].[ScannerId], [c3].[CategoryId], [s1].[Id]
FROM [CategoryScanners] AS [c3]
INNER JOIN [Scanners] AS [s1] ON [c3].[ScannerId] = [s1].[Id]
WHERE [s1].[Active] = CAST(1 AS bit) AND [s1].[Deleted] = CAST(0 AS bit)
) AS [s5] ON [c].[Id] = [s5].[CategoryId]
INNER JOIN (
SELECT [s2].[Id], [s2].[ScannerId], [s2].[TitleSlug]
FROM [ScannerCards] AS [s2]
WHERE [s2].[Active] = CAST(1 AS bit) AND [s2].[Deleted] = CAST(0 AS bit)
) AS [s6] ON [s5].[Id] = [s6].[ScannerId]
INNER JOIN (
SELECT [t].[TagId], [t].[ScannerCardId], [t0].[Id], [t0].[Active], [t0].[Created], [t0].[Deleted], [t0].[Description], [t0].[Links], [t0].[MediaSourceCopyright], [t0].[MediaSourceUrl], [t0].[ShortDescription], [t0].[SiteId], [t0].[StorageMediaName], [t0].[StorageMediaUrl], [t0].[Title], [t0].[TitleSlug], [t0].[Url], [t0].[Wikipedia], [t0].[WikipediaPageId], [t0].[WikipediaUpdated]
FROM [TagScannerCards] AS [t]
INNER JOIN [Tags] AS [t0] ON [t].[TagId] = [t0].[Id]
WHERE [t0].[Active] = CAST(1 AS bit) AND [t0].[Deleted] = CAST(0 AS bit)
) AS [s7] ON [s6].[Id] = [s7].[ScannerCardId]
WHERE [c].[Id] = @__id_0 AND [c].[SiteId] = @__site_Id_1 AND [c].[Active] = CAST(1 AS bit) AND [c].[Deleted] = CAST(0 AS bit)
ORDER BY [c].[Id], [s5].[Id], [s5].[ScannerId], [s5].[CategoryId], [s6].[TitleSlug], [s6].[Id], [s7].[TitleSlug]
|
| 8. |
info: 2025-04-26 01:57:00.690 RelationalEventId.CommandExecuted[20101] (Microsoft.EntityFrameworkCore.Database.Command)
10ms [Parameters=[@__site_Id_0='63d6eb4e-8e39-4ac6-8f69-55ee76feccce', @__item_Left_1='4630', @__item_Right_2='4631'], CommandType='Text', CommandTimeout='30']
SELECT [c].[Id], [c].[Active], [c].[Deleted], [c].[Description], [c].[DescriptionBackup], [c].[Left], [c].[ParentId], [c].[Position], [c].[ProcessorGenerateImagePrompt], [c].[Right], [c].[SiteId], [c].[StorageMediaName], [c].[StorageMediaUrl], [c].[Title], [c].[TitleBackup], [c].[TitleSlug], [c].[TotalChildren], [c].[TotalScanners], [c].[TotalYoutubeVideos]
FROM [Categories] AS [c] WITH (NOLOCK)
WHERE [c].[SiteId] = @__site_Id_0 AND [c].[Left] <= @__item_Left_1 AND [c].[Right] >= @__item_Right_2 AND [c].[Deleted] = CAST(0 AS bit)
ORDER BY [c].[Left]
|
| 61 ms |
