?-particle are
A) double positive helium nucleus
B) single positive helium nucleus
C) neutral helium atom
D) None of these
Correct Answer:
Verified
Q4: Which one of the following is not
Q5: Cathode rays are produced when high electric
Q6: The electronic configuration of chlorine with atomic
Q7: A divalent cation has 10 electrons and
Q8: The only elements having no neutron is
A)protium
B)deuterium
C)tritium
D)All
Q10: Neutron was discovered by
A)J J Thomson
B)James Chadwick
C)Goldstein
D)Rutherford
Q11: Man made synthetic fibre is
A)wool
B)rayon
C)nylon
D)cotton
Q12: Which one of the following statements is
Q13: Among metals, the poorest conductor of heat
Q14: The correct order of electrical conductivity is
A)Al
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