{"id":49969,"date":"2014-02-19T14:43:07","date_gmt":"2014-02-19T12:43:07","guid":{"rendered":"http:\/\/www.sorubak.com\/blog\/?p=49969"},"modified":"2014-02-19T12:47:46","modified_gmt":"2014-02-19T10:47:46","slug":"magnezyumun-ozellikleri","status":"publish","type":"post","link":"https:\/\/www.sorubak.com\/blog\/magnezyumun-ozellikleri.html","title":{"rendered":"Magnezyumun \u00d6zellikleri"},"content":{"rendered":"

Magnezyum (Mg), g\u00fcm\u00fc\u015f beyazl\u0131\u011f\u0131nda bir metaldir ve genellikle ala\u015f\u0131m maddesi olarak, yani ba\u015fka metallerle kar\u0131\u015ft\u0131r\u0131larak kullan\u0131l\u0131r. Kimyasal simgesi Mg, atom numaras\u0131 12; atom a\u011f\u0131rl\u0131\u011f\u0131 24,312 olan bu element en hafif metallerden biridir ve bu \u00f6zelli\u011fiyle \u00f6nem kazanm\u0131\u015ft\u0131r. Toz halindeki magnezyum kolayca tutu\u015fur ve parlak bir alevle yanar. Bu \u00f6zelli\u011fi nedeniyle, elektrikli foto\u011fraf makinesi fla\u015flar\u0131 \u00e7\u0131kmadan \u00f6nce, magnezyum yak\u0131larak fla\u015fl\u0131 foto\u011fraflar \u00e7ekilmi\u015ftir.<\/p>\n

1755 y\u0131l\u0131nda \u0130ngiltere’de Joseph Black taraf\u0131ndan ke\u015ffedilmi\u015ftir. 1808 y\u0131l\u0131nda Humphrey Davey taraf\u0131ndan saf olarak, magnezya ve civa-II-oksit (HgO) kar\u0131\u015f\u0131m\u0131ndan izole edilmi\u015ftir.<\/p><\/blockquote>\n

Sembol: Mg
\nAtom numaras\u0131:12
\nAtom a\u011f\u0131rl\u0131\u011f\u0131: 24.3050g\/mol
\nOda ko\u015fullar\u0131nda (25\u00b0C 298 K): G\u00fcm\u00fc\u015f\u00fcms\u00fc beyaz metalik kat\u0131
\nTorak Alkali metal<\/p>\n

s-blok elementi<\/p>\n

1755 y\u0131l\u0131nda \u0130ngiltere Joseph Black taraf\u0131ndan ilk olarak ke\u015ffedilmi\u015ftir. 1808 y\u0131l\u0131nda ise Humphrey Davey tafaf\u0131ndan saf olarak, magnesia ve HgO kar\u0131\u015f\u0131m\u0131ndan izole edilmi\u015ftir.<\/p>\n

En \u00e7ok bilinen mineralleri Karnalit (MgCl2.6H2O), talk (3MgO.4SiO2.H2O), serpantin (3MgO.SiO2.H2O) ve asbest [Mg2(OH)6Si4O11.H2O) tir.<\/p>\n

Deniz suyunda \u00e7ok miktarda magnezyum bulunmaktad\u0131r. Deniz suyundaki magnezyum CaO ile reaksiyona sokularak MgCl2 bile\u015fi\u011fi halinde geri kazan\u0131l\u0131r.<\/p>\n

CaO + H2O \u00e0 Ca2+ + 2OH-<\/p>\n

Mg2+ + 2OH-\u00e0 Mg(OH)2<\/p>\n

Mg(OH)2 + 2HCl \u00e0 MgCl2 + 2H2O<\/p>\n

S\u0131cak eritilmi\u015f MgCl2 bile\u015fi\u011finin elektrolizi ile saf olarak izole edilir. Ayn\u0131 zamanda a\u00e7\u0131\u011fa Cl2 gaz\u0131 \u00e7\u0131kar.<\/p>\n

Katot: Mg2+(s) + 2e-\u00e0 Mg<\/p>\n

Anot: Cl-(s) \u00e0 1\/2Cl2 (g) + e-<\/p>\n

Di\u011fer bir elde edili\u015f y\u00f6temi ise dolomit minerali [MgCa(CO3)2] \u0131s\u0131t\u0131larak kalsinit dolamite MgO.CaO d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr. Bu mineral ferrosilikon ile reaksiyona sokulur. Ve elde edilen kar\u0131\u015f\u0131mdan destilasyon ile saf olarak elde edilir.<\/p>\n

2[MgO.CaO] + FeSi \u00e02Mg + Ca2SiO4 + Fe<\/p>\n

Elektronik konfig\u00fcrasyonu:[Ne].3s2
\nKabuk yap\u0131s\u0131: 2.8.2
\nElektron ilgisi: 0 kJmol-1
\nElektronegatiflik: 1.31 (Pauling birimine g\u00f6re)
\n1.32 (Sanderson elektronegatifli\u011fine g\u00f6re)
\nAtomik Yar\u0131\u00e7ap\u0131:150 pm (145 pm hesaplama ile)
\n\u0130yonla\u015fma enerjisi
\n<\/span>I. \u0130yonla\u015fma Enerjisi<\/span>737.7 kJ\/mol<\/span>II. \u0130yonla\u015fma Enerjisi<\/span>1450.7 kJ\/mol<\/span>III. \u0130yonla\u015fma Enerjisi<\/span>7732.7kJ\/mol<\/span>IV. \u0130yonla\u015fma Enerjisi<\/span>10542.5kJ\/mol<\/span>V. \u0130yonla\u015fma Enerjisi<\/span>13630 kJ\/mol<\/span>VI. \u0130yonla\u015fma Enerjisi<\/span>18020 kJ\/mol<\/span>VII. \u0130yonla\u015fma Enerjisi<\/span>21711 kJ\/mol<\/span>VIII. \u0130yonla\u015fma Enerjisi<\/span>25661 kJ\/mol<\/span>IX. \u0130yonla\u015fma Enerjisi<\/span>31653 kJ\/mol<\/span>X. \u0130yonla\u015fma Enerjisi<\/span>35458 kJ\/mol<\/span>
\nOksidasyon say\u0131s\u0131:2
\n\u0130zotoplar\u0131:
\n<\/span>\u0130zotop<\/span>Yar\u0131lanma s\u00fcresi<\/span>22Mg<\/span>3.86 saniye<\/span>23Mg<\/span>11.32 saniye<\/span>24Mg<\/span>Kararl\u0131<\/span>25Mg<\/span>Kararl\u0131<\/span>26Mg<\/span>Kararl\u0131<\/span>27Mg<\/span>9.45 dakika<\/span>28Mg<\/span>21 saat<\/span>29Mg<\/span>1.3 saniye<\/span>
\n<\/span><\/span>Magnezyumun Elde Edilmesi:<\/strong><\/p>\n

Deniz suyunda bol miktarda magnezyum vard\u0131r. MgCl2<\/sub>\u00a0olarak kalsiyum oksit ile reaksiyonunda elde edilir.<\/p>\n

CaO + H2<\/sub>O \u2192 Ca2+<\/sup>\u00a0+ 2OH–<\/sup><\/p>\n

Mg2+<\/sup>\u00a0+ 2OH–<\/sup>\u00a0\u2192 Mg(OH)2<\/sub><\/p>\n

Mg(OH)2<\/sub>\u00a0+ 2HCl \u2192 MgCl2<\/sub>\u00a0+ 2H2<\/sub>O<\/p>\n

MgCl2\u00a0<\/sub>elektrolizi s\u0131v\u0131 magnezyum ve klor gaz\u0131 olu\u015fturur.<\/p>\n

Katot: Mg2+<\/sup>(l) + 2e–<\/sup>\u00a0\u2192 Mg<\/p>\n

Anot: Cl–<\/sup>(l) \u2192\u00a01<\/sup>\/2<\/sub>Cl2<\/sub>\u00a0(g) + e–<\/sup><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Magnezyum (Mg), g\u00fcm\u00fc\u015f beyazl\u0131\u011f\u0131nda bir metaldir ve genellikle ala\u015f\u0131m maddesi olarak, yani ba\u015fka metallerle kar\u0131\u015ft\u0131r\u0131larak kullan\u0131l\u0131r. Kimyasal simgesi Mg, atom numaras\u0131 12; atom a\u011f\u0131rl\u0131\u011f\u0131 24,312 olan bu element en hafif metallerden biridir ve bu \u00f6zelli\u011fiyle \u00f6nem kazanm\u0131\u015ft\u0131r. Toz halindeki magnezyum kolayca tutu\u015fur ve parlak bir alevle yanar. Bu \u00f6zelli\u011fi nedeniyle, elektrikli foto\u011fraf makinesi fla\u015flar\u0131 \u00e7\u0131kmadan … Devam\u0131n\u0131 oku…<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12783],"tags":[],"class_list":["post-49969","post","type-post","status-publish","format-standard","hentry","category-kimya-dn"],"_links":{"self":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts\/49969","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/comments?post=49969"}],"version-history":[{"count":0,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/posts\/49969\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/media?parent=49969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/categories?post=49969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sorubak.com\/blog\/wp-json\/wp\/v2\/tags?post=49969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}