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Rutherford's alpha-scattering experiment recognized that the mass of atom is concentrated with small positively charged region at the centre which is known as 'nucleus'.
Nuclei are made up of neutron and proton. The quantity of protons in a nucleus (known the atomic number or proton number) is shown by the symbol Z. The number of neutrons (neutron number) is represented by N. The total quantity of neutrons and protons in a nucleus is known it's mass number A so A = Z + N.
Neutrons and proton, when explained collectively are known as nucleons.
Nucleus have two types of particles : Protons and neutrons
Can you explain that a wave through the origin always has a slope of one or not?
Magnetic poles: The two regions near the ends of a magnet at which the attracting forces appear to be concentrated are called the magnetic poles. The pole (when freely suspende
discovery of electricity
Gamma Rays: The wave length of gamma rays is less than 10-11 m.
Q. What are secondary cells? Give an example? i) They are rechargeable. ii) The chemical reactions which take place in secondary cells are reversible. iii) The active mat
Object Located Between the Center of Curvature and the Focal Point Ray diagrams are meaningful tools for denoting the location of an image as generates through a concave mirror
What is the name of the temperature and pressure conditions at which water can be in the solid, liquid and gas phases simultaneously? Ans: The name of the temperature and pr
Production of sound messages by a microphone in a radio station (studio). 1) Audio frequency generation. 2) Generation of r.f. carrier wave. 3) Modulation in a transmitter, b) 4
Is a sewing needle magnetic or non magnetic? Answer:- When you purchase it in the store it isn't magnetized but if you rub it with a magnet it becomes magnetic.
how to do this project
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