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The Fundamental Unit Of Life

Question
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In Rutherford experiment of scattering of alpha particles, can we take foil of any other metal instead of gold?

Solution

In Rutherford experiment of scattering of alpha particles, we can take foil of any other metal if it is highly malleable because for this experiment we need a very thin foil. If the observation is taken by heavy metal like gold or Platinium, silver than the observation would be same but if it would be taken by light metal like lithium than the massive alpha particles will push the nucleus and may not be deflected back.

 

Some More Questions From The Fundamental Unit of Life Chapter

Define valency by taking examples of silicon and oxygen.

Explain with examples, (i) Atomic number, (ii) Mass number, (iii) Isotopes, and (iv) Isobars. Give any two uses of isotopes also.

Na+ has completely filled K and L-shells. Explain.

If Z = 3, what would be the valency of the element? Also, name the element.

Composition of the nuclei of two atomic species X and Y are given as under


                              X        Y
Protons  =                6        6
Neutrons=                6        6

Give the mass numbers of X and Y. What is the relation between the two species?

For the following statements, write T for True and F for False.

(a) J.J. Thomson proposed that the nucleus of an atom contains only nucleons.

(b) A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.

(c) The mass of an electron is about 1/2000 times that of proton.

(d) An isotope of iodine is used for making tincture iodine, which is used as a medicine.

Rutherford’s α-particle scattering experiment was responsible for the discovery of

Isotope of an element has

Number of valence electrons in Cl- ion are

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