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ليلى نائل الطباخي .

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ليلى نائل الطباخي .

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الصف الثامن ه .

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الاسم : ليلى نائل الباخي .

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الاسم : ليلى نائل الباخي .

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الصف: الثامن ( ه )  .
Scientist Dmitry Mendeleev Dmitry Mendeleev
He is the Russian scientist and chemist Dmitry Ivanovich Mendeleev, born on February 8, 1834, in Tobolsk, in the Russian Siberian region, and Mendeleev devoted his life to the study of chemistry, and reached many important chemical theories, and designed a number of devices specialized in chemistry such as Al Baconmeter, and remained a thirst for this science until he died on the second of February of 1907 AD, as a result of infection with influenza.

The scientist Dmitry Mendeleev grew up in Tobolsk, completed his primary and secondary education, and showed remarkable excellence in mathematics, physics and geography. In 1850 AD, he joined the main educational institute in St. Petersburg, and remained there until he graduated and obtained a degree in chemistry in 1855 AD, and he had obtained the first degree from among his peers. In 1856 AD, Mendeleev returned to St. Petersburg and managed to obtain a master's degree in physics and chemistry. Then he worked hard to come up with chemical theories, and did so at the Sorbonne and Heidelberg, teaching at the University of Saint Petersburg, the School of Engineering, and the Transport Institute. In 1865, he obtained a doctorate degree in chemistry, worked in oil fields and transmission lines, and was interested in agricultural productivity. In 1890 AD, Mendeleev completed his work from the University of St. Petersburg, and continued to apply his theories until he died.

The most notable achievements of Dmitri Mendeleev

The scientist Dmitri Mendeleev during his life reached many important achievements in the field of chemistry; Where he wrote one of the most famous books in the field of chemistry, namely: The Book of Principles of Chemistry, and he developed the periodic table of chemical elements and worked on its development. Where he discovered the existence of a similarity in the chemical properties with increasing the atomic weight of the elements of one group.

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راما أنور عبد الرازق

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راما أنور عبد الرازق الكوز

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راما أنور عبد الرازق

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راما أنور عبد الرازق الكوز

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راما أنور عبد الرازق

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راما أنور عبد الرازق الكوز

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اسراء عماد فضل الحافي 

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اسراء عماد فضل الحافي 

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الاسم اسراء عماد فضل

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الاسم اسراء عماد فضل الحافي

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رنيم وائل محمد عمرو 

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رنيم وائل محمد عمرو الثامن ها
بإشراف المعلمة شذا
اللغة الإنجليزية

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رنيم وائل محمد عمرو 

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رنيم وائل محمد عمرو الثامن ها

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نور اياد شيخوالث

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نور اياد شيخو
الثامن أ

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ليان حسام جبرانا

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ليان حسام جبران
الصف الثامن ه
بإشراف المعلمه:شذا

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ليان حسام جبرانا

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ليان حسام جبران
الصف الثامن ه
بإشراف المعلمه:شذا

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عاليا ابو حسن صف الثامن (هـ) 

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عاليا ابو حسن صف الثامن (هـ) 

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العالم ديميتر مندليف

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The periodic table is a tabular arrangement of the chemical elements, arranged according to their atomic number, electronic distribution, and repetitive chemical properties, whose structure shows periodic trends. In general, the elements in row one (the cycle) are metals to the left, but not metals to the right, so that elements with similar chemical behaviors are placed in the same column. Table rows are usually called cycles and columns are called groups. Six groups have names plus assigned numbers: for example, group 17 elements are the halogens; And group 18 are the noble gases. It is also shown as four simple rectangular regions or sub-planes associated with filling in different atomic orbitals.The organization of the periodic table can be used to derive relationships between properties of the different elements, as well as the expected chemical properties and behaviors of the newly discovered or synthesized elements. Russian chemist Dmitry Mendeleev was the first to publish a known periodic table in 1869, and it was mainly developed to illustrate the periodic trends of the elements then known. He also anticipated some properties of unspecified elements that were expected to fill the gaps within the scale. Most of his predictions proved correct. Mendeleev's idea was slowly expanded and refined with the discovery or synthesis of other new elements and the development of new theoretical models to explain chemical behavior. The modern periodic table now provides a useful framework for analyzing chemical reactions, and it is still widely used in chemistry and All elements from atomic number 1 (hydrogen) to 118 (Ogenson) were discovered or synthesized, and the first seven rows of the periodic table were completed. [1] [2] The first 98 elements are found in nature, although some are only present in trace quantities and others were synthesized in laboratories before they were found in nature. [N 1] Elements 99 to 118 were synthesized only in laboratories or nuclear reactors. 3) The grouping of elements with higher atomic numbers is being pursued: these begin in the eighth grade, and theoretical work has suggested potential candidates for this extension. Many synthetic radionuclides have also been produced from natural elements in laboratories

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 رغد النوباني ال

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رغد النوباني
الثامن (ه)

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Hala essam
8 grade

Dmitry Mendeleev is a Russian scientist and chemist
Dmitry Ivanovich Mendeleev
He was born on February 8, 1834 AD, in Tobolsk, and Mendeleev devoted his life to the study of chemistry,
He reached many important chemical theories, and designed a number of devices specialized in chemistry, such as the bioconometer.
 He died on February 2, 1907, as a result of being infected with influenza.
Achievements of Dmitri Mendeleev The scientist Dmitri Mendeleev during his life reached many important achievements in the field of chemistry; Where he wrote one of the most famous books in the field of chemistry, namely: The Principles of Chemistry,
He developed and developed the periodic table of chemical elements. Where he discovered the existence of similarities in the chemical properties with increasing the atomic weight of the elements of one group.

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Hala essam
8 grade ~~

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Name: Nouran Sameh Al_zatiy
ثامن (ه):الصف

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الأسم : نوران سامح ا

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الأسم : نوران سامح الزيتي.
الصف : ثامن (ه).

Personal information
Birth name
(Russian: Дмитрій Ивановичъ Менделѣевъ) Edit property value (P1477) in Wikidata
Birth
February 8, 1834
Verhnie Aremzyani, Tobolsk, Russian Empire
Death
February 2, 1907 (aged 72)
Saint Petersburg, Russian Empire
Cause of death
Pneumonia [2] [1] Modify the value of a property (P509) in Wikidata
Nationality
Russian
Religion
Eastern Orthodoxy
Member of the
Royal Society, Prussian Academy of Sciences, Serbian Academy of Sciences and Arts, Royal Swedish Academy of Sciences, Academy of Sciences in Göttingen, Saint Petersburg Academy of Sciences [other languages], Hungarian Academy of Sciences, American Academy of Arts and Sciences, American Philosophy Society [3],The Ninety National Academy of Sciences [other languages] and the National Academy of Sciences modify the value of a property (P463) in Wikidata
practical life
Parent school
Saint Petersburg State University modified property value (P69) in Wikidata
College degree
Doctor modify the (P512) property value in Wikidata
Famous students
Sergey Prokudin-Gorsky adjusting the value of a property (P802) in Wikidata
Occupation
Chemist [1], Physicist [1], Professor [1], and Economist [1] Modify the value of a property (P106) in Wikidata
Native language
Russian property value adjustment (P103) in Wikidata
Languages
Russian [4] [1], German, and French modify property value (P1412) in Wikidata
Employment
Chemistry, Physics and Alike Fields
employee in
Saint Petersburg State University adjusting the value of a propertyCollege degree
Doctor modify the (P512) property value in Wikidata
Famous students
Sergey Prokudin-Gorsky adjusting the value of a property (P802) in Wikidata
Occupation
Chemist [1], Physicist [1], Professor [1], and Economist [1] Modify the value of a property (P106) in Wikidata
Native language
Russian property value adjustment (P103) in Wikidata
Languages
Russian [4] [1], German, and French modify property value (P1412) in Wikidata
Employment
Chemistry, Physics and Alike Fields
employee in
Saint Petersburg State University modified property value (P108) in Wikidata
The reason for fame
The invention of the periodic table of chemical elements
Notable works
Periodic table property value adjustment (P800) in WikidataPrizes
Copley Medal (1905) [5]
Lecturer Prize for Faraday [Other Languages] (1889)
Devi Necklace (1882) [6]
Demidov Prize [Other Languages] (1862)
Legion Honneur Chevalier ribbon.svg Knight's Legion of Honor [other languages]
RUS Imperial Order of Saint Alexander Nevsky ribbon.svg Nishan Knights of Saint Alexander Nevsky [other languages]
Foreigner membership in the Royal Society [other languages]
RUS Imperial Order of Saint Vladimir ribbon.svg Nishan Saint Vladimir of the First Order [other languages]
RUS Imperial Order of Saint Stanislaus ribbon.svg Order of Saint Stanislaus, First Class [other languages]
RUS Imperial Order of the White Eagle ribbon.svg The White Eagle Order [other languages]
RUS Imperial Order of Saint Alexander Nevsky ribbon.svg Nishan Saint Alexander Nevsky [other languages]
RUS Imperial Order of Saint Anna ribbon.svg The Order of Saint Anna, First Class [other languages]
Chevalier-legion-dhonneur-empire-1804.jpg Medal of Legion of Honor Adjustment of Property Value (P166) at Wikidata
Signature
Mendelejew signature.jpg

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الأسم : نوران سامح ا

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الأسم : نوران سامح الزيتي.
الصف : ثامن (ه).

Dmitriy Ivanovich Mendeleev (Russian:  and (about this ru-Dmitri_Mendeleev.ogg (? Information)) is best known as Mendeleev, Russian chemist (February 8, 1834 - February 2, 1907). He is best known for his contribution to the creation of the first version of the Periodic Table of Elements. And unlike those who contributed to the idea of ​​the periodic table, Mendeleev was able to predict the chemical properties of elements that had not been discovered at their time. In many cases he ventured into questioning the accuracy of the atomic weights accepted at his time, and he was arguing that they do not match what is expected of them by the periodic law, and research has subsequently proven the correctness of his words

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لانا عرب القصراوي

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لانا عرب القصراوي
الثامن ها
مس شذا

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لانا عرب القصراوي

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لانا عرب القصراوي
الثامن ها
مس شذا

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لانا عرب القصراوي

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لانا عرب القصراوي
الثامن ها
مس شذا📋📋📋

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Dmitri Mendeleev was the youngest of at least 14 children in his family. His father was a teacher at the local gymnasium, and his mother came from a family that introduced glass and paper making to Siberia. From a very young age, Dimitri
showed a high interest in physics and mathematics. Also, he was taught many things about glass and glass blowing from the family factory.
When Mendeleev was 13, he lost his father. This sad event affected the family, but Mendeleve's mother kept supporting the family. She also noticed his gifted abilities in science and wanted to help him get a good education. So, she took him to St. Petersburg, where he enrolled in the Main Pedagogical Institute. Few months later, he lost his mom and sister.
Mendeleev had a great interest in the elements. His most significant accomplishments were his discovery of periodic law and the making of the periodic table. Scientists continue to adjust the periodic table as new elements are found. Mendeleev’s mission, to clarify chemistry, lives on. He dedicated his textbook to his mother who always supported and encouraged him while she was alive.

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