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Answers
Ernest Rutherford performed an experiment to know the arrangement of electrons within an atom. In this experiment, fast-moving alpha particles were made to fall on a thin gold foil (100 nm thickness). The a-particles are doubly charged helium ions. It was expected that a-particles would be deflected by subatomic particles in the gold atom. Since a-particles were much heavier than protons, he did not expect to see large deflections.
But, the a-particle scattering experiment gave totally unexpected results.
The following observations were made: (i) Most of the fast-moving -particles passed straight through the gold foil.
(ii) Some of the -particles were deflected by the foil by small angles.
(iii) Surprisingly one out of every 12000 particles appeared to rebound.What happens when quicklime is added to water? When quicklime is added to water, it forms slaked lime along with the evolution of heat. There will be a rise in the temperature of the bucket. Calcium oxide reacts with water to form calcium hydroxide, also called slaked lime.
When aqueous solution of silver nitrate (AgNO3) is mixed with an aqueous solution of Sodium Chloride (NaCL), a white precipitate of Silver Chloride (AgCL) is formed. Solid AGCL is not soluble in water. Silver Nitrate and Sodium Chloride are both soluble in water.Ernest Rutherford performed an experiment to know the arrangement of electrons within an atom. In this experiment, fast-moving alpha particles were made to fall on a thin gold foil (100 nm thickness). The a-particles are doubly charged helium ions. It was expected that a-particles would be deflected by subatomic particles in the gold atom. Since a-particles were much heavier than protons, he did not expect to see large deflections.
But, the a-particle scattering experiment gave totally unexpected results.
The following observations were made: (i) Most of the fast-moving -particles passed straight through the gold foil.
(ii) Some of the -particles were deflected by the foil by small angles.
(iii) Surprisingly one out of every 12000 particles appeared to rebound.What happens when quicklime is added to water? When quicklime is added to water, it forms slaked lime along with the evolution of heat. There will be a rise in the temperature of the bucket. Calcium oxide reacts with water to form calcium hydroxide, also called slaked lime.
When aqueous solution of silver nitrate (AgNO3) is mixed with an aqueous solution of Sodium Chloride (NaCL), a white precipitate of Silver Chloride (AgCL) is formed. Solid AGCL is not soluble in water. Silver Nitrate and Sodium Chloride are both soluble in water.Ernest Rutherford performed an experiment to know the arrangement of electrons within an atom. In this experiment, fast-moving alpha particles were made to fall on a thin gold foil (100 nm thickness). The a-particles are doubly charged helium ions. It was expected that a-particles would be deflected by subatomic particles in the gold atom. Since a-particles were much heavier than protons, he did not expect to see large deflections.
But, the a-particle scattering experiment gave totally unexpected results.
The following observations were made: (i) Most of the fast-moving -particles passed straight through the gold foil.
(ii) Some of the -particles were deflected by the foil by small angles.
(iii) Surprisingly one out of every 12000 particles appeared to rebound.What happens when quicklime is added to water? When quicklime is added to water, it forms slaked lime along with the evolution of heat. There will be a rise in the temperature of the bucket. Calcium oxide reacts with water to form calcium hydroxide, also called slaked lime.
When aqueous solution of silver nitrate (AgNO3) is mixed with an aqueous solution of Sodium Chloride (NaCL), a white precipitate of Silver Chloride (AgCL) is formed. Solid AGCL is not soluble in water. Silver Nitrate and Sodium Chloride are both soluble in water.Ernest Rutherford performed an experiment to know the arrangement of electrons within an atom. In this experiment, fast-moving alpha particles were made to fall on a thin gold foil (100 nm thickness). The a-particles are doubly charged helium ions. It was expected that a-particles would be deflected by subatomic particles in the gold atom. Since a-particles were much heavier than protons, he did not expect to see large deflections.
But, the a-particle scattering experiment gave totally unexpected results.
The following observations were made: (i) Most of the fast- heavier than protons, he did not expect to see large deflections.
But, the a-particle scattering experiment gave totally unexpected results.
The following observations were made: (i) Most of the fast-moving -particles passed straight through the gold foil.
(ii) Some of the -particles were deflected by the foil by small angles.
(iii) Surprisingly one out of every 12000 particles appeared to rebound.