DATECHPROGALL Education

 MATHS TALENT TEST based on the following syllabus parameters we conclude and allow this to write for you: utilize this precious opportunity, I hope you will get a good rank in ecet. now the syllabus parameters: matrices, trigonometry, analytical geometry, integrations and applications, complex numbers and partial fractions, etc. here we will discuss these all in a simple test.......... the test starts from afternoon 2pm today all the best TO START THE EXAM BY THE FOLLOWING LINK: START

The periodic table is invented due to avoid confusion while searching and locate the elements. at that time chemists are started to frame ways to group these elements and compounds on the basis of their physical and chemical states. at the beginning of the 18 th century, a scientist called joseph Louis stated that the hydrogen atom is a building material and atoms of all other elements are simply due to a combination of a number of hydrogen atoms. and also considering some examples the atomic weight of hydrogen is taken as ONE. DOBEREINER'S TRIAD THEORY: dobereiner's he was a German man. he was tried to prove the relationship between elements of their properties and atomic weights. he stated that the arrange the three elements are in ascending order which has similar properties with the help of atomic weights. and the middle element is the average of the first and third elements. this theory is called the law of triads. limitations: this law failed for low mass and very high ma...