![]() ![]() We know an element may have different types of isotopes. Similarly, atoms of an element may be different in terms of mass number as well as physical properties. It has been found that an atom contains approximately forty subatomic particles. But, nowadays we know that atom is not the smallest particle of an element. According to Dalton’s theory of the atom, an element’s atom is its tiniest particle. However, this idea is currently being changed for a lot of reasons. The advancement of modern sciences has been significantly influenced by Dalton’s atomic theory. During combination, the atoms of one element are not changed into those of another element. Simple whole-number ratios can be used to combine atoms to create a compound.This is also known as the law of matter’s indestructibility. Atoms cannot be destroyed or generated, which means that atoms of one element cannot be transformed into atoms of another. ![]() ![]() Atoms of an element are similar in all respect while atoms of different elements are different in terms of properties and weight.Atoms are the extremely tiny, indivisible, and invisible basic building block of all matter.Dalton developed it into the modern atomic theory to explain the law of chemical combination. John Dalton published a book in 1808 A.D., “The theory of chemical reactivity” in which he explained the existence of atoms in a scientific way. John Dalton, an English chemist proposed Dalton’s atomic theory by adopting an ancient theory concerning the ultimate constitution of matter which had been expounded by the early Hindu and Greek philosophers. ![]()
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