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Periodic table

                                   Periodic table ELEMENTS- Elements are pure from of matter that are made up of one type of atom. ·        DOBEREINER- Grouped all elements in three (triads). ·        NEWLAND- Observed that when elements are arranging in increasing order of their atomic mass. Every eighteen element beginning from any element resemble the first element in its physical and chemical properties. ·        DMITRI MENDLEVE- He is a Russian chemist gave the first periodic table of elements based on his law which states that “The properties of elements are the periodic functions of their atomic mass.”   ·        Modern periodic table was given by HENERY MOSELEY. Periodic table- A tabular form of elements in group and periods highlighting the regular trends in...
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ALBERT EINSTEIN

                    ALBERT EINSTEIN Albert Einstein was born on 14 March 1879 in the German city of Ulm, without any indication that he was destined for greatness. On the contrary, his mother thought Albert was a freak. To her, his head seemed much too large. At the age of two-a-half, Einstein still wasn't talking. When he finally did learn to speak, he uttered everything twice. Einstein did not know what to do with other children, and his playmates called him "Brother Boring." So the youngster played by himself much of the time. He especially loved mechanical toys. Looking at his newborn sister, Maja, he is said to have said: "Fine but where are her wheels?" A headmaster once told his father that what Einstein chose as a profession wouldn't matter, because"he'll never make a success at anything." Einstein began learning to play the violin at the age of six, because his mother wanted him to;  he later became a violinist, m...
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CA chapter 2 notes class 10

COMPUTER APPLICATION.. CLASS-10... CHPATER -2 INTERNET     SERVICES                                             1)Fill in the blanks.   a.        Google is a good example of a Search Engine .   b.       Search engines broadly consist of three components: The Crawler , The Index , The Search Algorithm .   c.        An E-mail program enables you to send, receive and manage your message through the World Wide Web.   d.        Download means to transfer files from the system you have called to the computer you are using. e.        Upload means to transfer files from your hard disk to the Computer System you have accessed by a modem.   f.   News Group   provide a good way to exchang...
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