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Q. Illustrate what are the three particles that make up an atom?
Answer:-
Atoms are conjured of neutrons, protons, and electrons. The protons as well as neutrons are found together in the core of the atom called the nucleus which is in the centre.
The electrons are found travelling around the nucleus at different energy levels in what is called the electron cloud.
Note that in hydrogen the majority all of it is made up of just a lone proton and an electron. There are no neutrons in the majority common isotope of hydrogen (1H). Protons as well as neutrons which are called nucleons when they're found in an atomic nucleus are further made of still smaller subatomic particles called quarks.
An isotope of iodine (Z = 53) is used to treat thyroid conditions. Its mass number is 131. How many neutrons are in its nucleus? 131 - 53 = 78 neutrons
Visible Radiation (Waves): Visible waves have a wavelength range among 400 and 700 nanometre.
The idea that everything is made up of very small particles has been developed over many years supported by several experiments: (i) Brownian motion :
What is Friction? When we think about friction, there is one more place for energy to go - heat. When you push a book across a table, does the energy of the book change? Not if
Distinguish between a terrestrial telescope and an astronomical telescope. Explain Rams dens' eye piece with the help of a neat diagram. Illustrate its advantages and disadvantages
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