Rutherford’s α–particle scattering experiment showed that- electrons have a negative charge
- the mass and positive charge of the atom is concentrated in the nucleus
- neutron exists in the nucleus
- most of the space in the atom is empty Which of the above statements are correct?
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (iv)
(d) (iii) and (iv)
Correct Answer: (b) (ii) and (iv)
Explanation: An atom consists of a positively charged, dense and very small nucleus which have all the protons and neutrons. The space is empty because alpha particles pass straight through the gold foil without any deflection.
 
Related Articles
- In the α-scattering experiment, few α-particles rebounded because(a) Most of the space in the atom is occupied.(b) Positive charge of the atom occupies very little space.(c) The mass of the atom is concentrated in the centre.(d) all positive charge and mass of the atom is concentrated in small volume.
- Which one of the following depicts the correct representation of the atomic radius(r) of an atom?(i) and (ii)(ii) and (iii)(iii) and (iv)(i) and (iv)"
- Which of the following are homogeneous in nature?icewoodsoilair(a) (i) and (iii)(b) (ii) and (iv)(c) (i) and (iv) (d) (iii) and (iv)
- In the Thomson’s model of atom, which of the following statements are correct?the mass of the atom is assumed to be uniformly distributed over the atomthe positive charge is assumed to be uniformly distributed over the atomthe electrons are uniformly distributed in the positively charged spherethe electrons attract each other to stabilise the atom(a) (i), (ii) and (iii)(b) (i) and (iii)(c) (i) and (iv) (d) (i), (iii) and (iv)
- Which of the following are the correct characteristics of isotopes of an element?(i) same atomic mass(ii) same atomic number(iii) same physical properties(iv) same chemical properties(a) (i), (ii) and (iv)(b) (ii), (iii) and (iv)(c) (ii) and (iii)(d) (ii) and (iv)
- Which of the following are compounds?(i) CO (ii) No(iii) NO (iv) Co(a) (i) and (ii)(b) (ii) and (iii)(c) (i) and (iii)(d) (ii) and (iv)
- Consider the list of terms given below:$(i)$. Tsunami $(ii)$. Landslides$(iii)$. Floods $(iv)$. LightningEarthquakes can cause$(a)$. $(i)$, $(ii)$ and $(iii)$ $(b)$. $(ii)$ and $(iv)$ $(c)$. $(ii)$, $(iii)$ and $(iv)$ $(d)$. $(iii)$ and $(iv)$
- Which of the following are not ionic compounds?KClHClCCl4NaCl(a) (i) and (ii)(b) (ii) and (iii)(c) (iii) and (iv)(d) (i) and (iii)
- Identify the unsaturated compounds from the followingPropanePropenePropyneChloropropane(a) (i) and (ii) (b) (ii) and (iv)(c) (iii) and (iv) (d) (ii) and (iii)
- Which of the following are also considered to be the states of matter?(i) Plasma (ii) Platelets(iii) BEC (iv) BHC(a) (i) and (ii)(b) (ii) and (iii)(c) (i) and (iii)(d) (ii) and (iv)
- In an ecosystem :(i) the flow of energy is unidirectional(ii) the flow of materials is unidirectional(iii) the flow of materials is cyclic(iv) the flow of energy is cyclic.(a) (i) and (ii) (b) (ii) and (iii) (c) (i) and (iv) (d) (i) and (iii)
- Which of the following statements are correct?(i) pyruvate can be converted into ethanol and carbon dioxide by yeast (ii) fermentation takes place in the case of aerobic bacteria (iii) fermentation takes place in mitochondria (iv) fermentation is a form of anaerobic respiration (a) (i) and (iii)Â (b) (ii) and (iv)Â (c) (i) and (iv)Â (d) (ii) and (iii)
- Which of the following are chemical changes?(i) decaying of wood(ii) burning of wood(iii) sawing of wood(iv) hammering of a nail into wood(a) (i) and (ii) (b) (ii) and (iii)(c) (iii) and (iv) (d) (i) and (iv)
- Which of the following are physical changes?Melting of iron metalRusting of ironBending of an iron rodDrawing a wire of iron metal(a) (i), (ii) and (iii)(b) (i), (ii) and (iv)(c) (i), (iii) and (iv) (d) (ii), (iii) and (iv)
Kickstart Your Career
Get certified by completing the course
Get Started