(B) Gold is highly malleable,which means it can be beaten into very thin sheets.In his $\alpha$-ray scattering experiment,Rutherford required a target

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Gold is highly malleable,allowing for an extremely thin sheet.

(B) Gold is highly malleable,which means it can be beaten into very thin sheets.In his $\alpha$-ray scattering experiment,Rutherford required a target material that was as thin as possible to ensure that the $\alpha$-particles would pass through with minimal interference from multiple atomic layers.Therefore,gold was the ideal choice because it could be hammered into a foil of approximately $1000$ atoms in thickness.

Class 9 Science STRUCTURE OF THE ATOM Mix Example - STRUCTURE OF THE ATOM

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Why did Rutherford select a gold foil in his $\alpha$-ray scattering experiment?

A
Gold is a noble metal.
B
Gold is highly malleable,allowing for an extremely thin sheet.
C
Gold is a good conductor of electricity.
D
Gold is easily available.

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STRUCTURE OF THE ATOM

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Mix Example - STRUCTURE OF THE ATOM

Match the names of the scientists given in column $A$ with their contributions towards the understanding of the atomic structure as given in column $B$.
Column $A$ Column $B$
$(a)$ Ernest Rutherford $(i)$ Indivisibility of atoms
$(b)$ $J$.$J$. Thomson $(ii)$ Stationary orbits
$(c)$ Dalton $(iii)$ Concept of nucleus
$(d)$ Neils Bohr $(iv)$ Discovery of electrons
$(e)$ James Chadwick $(v)$ Atomic number
$(f)$ $E$. Goldstein $(vi)$ Neutron
$(g)$ Mosley $(vii)$ Canal rays

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Define the term valency. How is valency different from valence electrons? Find the valency of oxygen and fluorine.

Medium

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$(a)$ Write the names of three isotopes of hydrogen.
$(b)$ State one use of an isotope of uranium.
$(c)$ Isotopes of an element have similar chemical properties. Why?

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Write five applications of isotopes in various fields.

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What were the drawbacks of Rutherford's model of an atom?

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Column $A$	Column $B$
$(a)$ Ernest Rutherford	$(i)$ Indivisibility of atoms
$(b)$ $J$.$J$. Thomson	$(ii)$ Stationary orbits
$(c)$ Dalton	$(iii)$ Concept of nucleus
$(d)$ Neils Bohr	$(iv)$ Discovery of electrons
$(e)$ James Chadwick	$(v)$ Atomic number
$(f)$ $E$. Goldstein	$(vi)$ Neutron
$(g)$ Mosley	$(vii)$ Canal rays

Why did Rutherford select a gold foil in his $\alpha$-ray scattering experiment?

Similar Questions

Define the term valency. How is valency different from valence electrons? Find the valency of oxygen and fluorine.

$(a)$ Write the names of three isotopes of hydrogen.$(b)$ State one use of an isotope of uranium.$(c)$ Isotopes of an element have similar chemical properties. Why?

Write five applications of isotopes in various fields.

What were the drawbacks of Rutherford's model of an atom?

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$(a)$ Write the names of three isotopes of hydrogen.
$(b)$ State one use of an isotope of uranium.
$(c)$ Isotopes of an element have similar chemical properties. Why?