Materials which can be compressed are said to be soft whereas thosecannot be compressed are said to hard explain?
Who was the English scientist that said all matter is made up of a relatively small number indivisible particles called atom?
Postulates of Dalton's Atomic Theory: Atoms are made up of small indivisible particles called atoms. Atoms can neither be created, nor be destroyed. Atoms of same elements are similar in all respects, and atoms of different elements are different in all respects. Atoms combine together in simple whole number ratios, forming molecules. Of all these postulates, only the last one is correct.
He proposed a theory that stated if you cut matter in half and then cut those halves in half again, eventually you end up with an "uncuttable particle" He called this atomos which is Greek for indivisible. He said that all atoms were small, hard particles made up of a single material formed into different shapes and sizes. Atoms are always moving and form different materials by joining together. Hope this helped :)
A chemical formula that shows the arrangement of atoms and their bonds. As the previous guy said, it is a representation that shows the arrangement of atoms and their bonds. Types are: 1. Lewis structures...simple representation which do not show the arrangement of atoms in the 3-d space. Hence generally used for small molecules. for the 3-d arrangement, we have Fisher, Newman, and Haworth projections.
Who was the scientist who said An atom is composed of a central nucleus surrounded by revolving Atoms?
Democritus, an ancient Greek philosopher living around 400 BC, is credited with creating the original theory of atoms. He coined the word "atomos", which means "indivisible". He stated that all matter is made up of atoms. Democritus's model of an atom consisted of a smooth, hard ball. He said that atoms are indestructible and always in motion. Democritus thought that atoms differ in shape and size. There is an infinite number of atoms and infinite…