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Some Observations
The binomial coefficients in (a + b) n , which are equidistant from beginning and end are equal. The binomial coefficients in the expansion of (a + b) n can be easily evaluated by using the Pascal's triangle given below: In the Pascal's triangle, each row starts and ends with 1 and each coefficient..
The binomial coefficients in (a + b) n , which are equidistant from beginning and end are equal. The binomial coefficients in the expansion of (a + b) n can be easily evaluated by using the Pascal's triangle given below: In the Pascal's triangle, each row starts and ends with 1 and each coefficient..Modern Atomic Theory
In view of new discoveries about atoms, Dalton's atomic theory was modified as given below: * Atom is no longer indivisible as it has a complex structure of sub atomic particles (electrons, protons and neutrons). * Atoms of the same element may posses different relative ma..
Comparison of Dalton's Atomic Theory and Modern Atomic Theory
Dalton's Atomic Theory Modern Atomic Theory All matter is made up of extremely small particles called atoms An element is made up of extremely small particles called atoms Atoms are indivisible and indestructible Atoms are divisible and are n..
The Modern Periodic Table
>The modern periodic table is also known as the long form of the periodic table or the extended form of the periodic table. In this table, the elements are arranged in the order of increasing atomic numbers in such away that elements with similar properties fall in the same vertical colum..
Theory of Spontaneous Generation
! The 'soup' consisted of a dirty cloth soaked in water with a handful of wheat grains. Helmont stated that if human sweat is added as an 'active principle' to this, in just 17 days, it could generate rats! The theory of Spontaneous Generation was disproved in the course of time..
General possibility
You can drive when you're 17. ( present ) Women couldn't vote until just after the First World War..
Structure of the Atom
Structure of Atom - When scientists started exploring matter, they discovered that the smallest particle of an element that maintains its chemical identity through all chemical and physical changes is called and 'atom'. Just how small these atoms are can be made out if you realize that th..
Structure of Atom - When scientists started exploring matter, they discovered that the smallest particle of an element that maintains its chemical identity through all chemical and physical changes is called and 'atom'. Just how small these atoms are can be made out if you realize that th..A Search for the Particles of Atom of Electrons
Although Dalton's theory of the existence of atoms was published in 1808, there was no clear idea of what an atom might look like until the early part of the twentieth century. With the advent of electricity and phenomenon of spectrum, experimentation underwent a change and a flurry of r..
Neo-Darwinism
The theory put forth by Darwin and Wallace gained wide acceptance. However, in the light of modern evidences, it was slightly modified and called the neo-Darwinism. In neo-Darwinism, organic evolution is by natural selection of inherited characters. It utilises evidences from va..
Atoms and Molecules
The Atom - When scientists started exploring matter, they realised that matter can be divided into smaller and still smaller particles. What was the ultimate particle like? They discovered that the smallest particle of an element that maintains its chemical identity through all chemical and phys..
The Atom - When scientists started exploring matter, they realised that matter can be divided into smaller and still smaller particles. What was the ultimate particle like? They discovered that the smallest particle of an element that maintains its chemical identity through all chemical and phys.. Result
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