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Q. What do you mean by nucleus of the atom?
The nucleus of an atom for the reason that atoms have no net electrical charge scientists reasoned that if an atom contains particles of negative charge it must as well contain particles of positive charge. In 1911 Ernest Rutherford perform experiments in which he aimed a ray of alpha particles (positively charged helium nuclei) at a thin sheet of gold. The fact that some of these heavy particles were deflected almost directly backwards revealed that the positive charge of an atom along with nearly the entire atom's mass is concentrated in a very small region in the centre of the atom. This optimistically charged mass is called the nucleus of the atom. The particles that comprise the positive charge of the nucleus are called protons and each has a charge of 1(equal to but opposite the charge of an electron).
Nucleic Acids - Biomolecules In every living molecule there are available in nucleo-proteins that are made up of proteins and natural polymers of great biological significance
compound reacts with oxygen to form 2 oxide x and y. or analysis 1.535g of x yielded 1.365g of copper and 1.545g of y yielded 1.6 a.determine the chemical compound of x and y.b .
Free radical and Aromatic rearrangement Migration or Rearrangement to free radical species or Free radical rearrangement: Those rearrangement reactions where the migr
Q. What are Changes in Matter? Matter is able to undergo two fundamental kinds of changes. Changes that don't alter the composition of matter are called physical changes. Sta
how can you relate boyle''s law to atmospheric pressure?
In the following reactions , identify each lettered (A,B,C,D,E,F)product.
Structure of DNA and RNA The sequence of bases along with the DNA and RNA chain makes its primary structure that controls the particular properties of the nucleic acid. An RNA
Physical Properties of Acrylic Acid a. Acrylic Acid is colourless pungent smelling liquid. Its boiling point is 141°C. b. Acrylic Acid is miscible with alcohol, water and et
Different Atomic Models
structure of Bicyclo(3.3.1)non-1-ene
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