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Rutherford's alpha-particle scattering e...

Rutherford's alpha-particle scattering experiment discovered

A

Electron

B

Proton

C

Atomic nucleus

D

Neutron

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Rutherford's alpha -particle scattering experiment showed that (i) electrons have negative charge. (ii) the mass and positive charge of the atom is concentrated in the nucleus. (iii) neutron exists in the nucleus. (iv) most of the space in atom is empty. Which of the above statements are correct ?

Which of the following conclusions regarding the structure of atom is based on Rutherford's alpha -particle scattering experiment?

Assertion : In Rutherford's alpha -particle scattering experiment, most of the alpha -particles were deflected by nearly 180^(@) . Reason : The positive charge of the atom is spread throughout the atom that repelled and deflected the positively charged alpha -particles.

In Rutherford's alpha particle scattering experiment with their gold foil 8100 scintillations per minute are observed at an angle of 60^(@) . The number of seintillations per minute at 120^(@) will be

Fill in the blanks in the following statements. (a) Rutherford's alpha -particle scattering experiment lead to the discovery of the …….. . (b) Isotopes have same……… but different……. . (c) Neon and chlorine have atomic numbers 10 and 17 respectively. Their valencies will be...... and........ respectively. (d) The electronic configuration of silicon is .......... and that of sulphur is........ .

Which of the following conclusions couldnot be derived from Rutehrford's alpha -particle scattering experiment?

Rutherford's alpha particle scattering experiment eventually led to the conclusion that

Rutherford's alpha particle scattering experiment eventually led to the conclusion that

Rutherford's alpha( alpha ) particles scattering experiment resulted into discovery of

Which of the following conclusions could not be derived from Rutherford's α-particle scattering experiment?

ICSE-ATOMIC STRUCTURE AND CHEMICAL BONDING-EXERCISE 4(C)
  1. Why do overset(35)underset(17)" " CI and overset(37)underset(17)" " CI...

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  2. Explain fractional atomic mass. What is the fractional mass of chlorin...

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  3. What is meant by "atomic number of an element"?

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  4. Write down the electronic configuration of (i) chlorine atom (ii) chlo...

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  5. Name the following An element which does not contain any neutron

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  6. Name the following: An element having valency 'zero'.

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  7. Name the following: Metal with valency 2.

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  8. Name the following: Two atoms having the same number of protons and...

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  9. Name the following: The shell closest to the nucleus of an atom.

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  10. Give reasons Physical properties of isotopes are different

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  11. Give reasons Argon does not react.

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  12. Give reasons Actual atomic mass is greater than mass number.

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  13. Give reasons overset(35)underset(17)" " CI and overset(37)underset(1...

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  14. An element A atomic number 7 mass number 14 B electronic configura...

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  15. Rutherford's alpha-particle scattering experiment discovered

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  16. Number of valence electrons in O^(2-) is :

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  17. Which of the following is the correct electronic configuration of pota...

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  18. The mass number of an atom whose unipositive ion has 10 electrons and ...

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  19. Explain : octet rule for formation of a chemical compund.

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  20. Explain : duplet rule for formation of hydrogen.

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