A particular hydrogen like atom has its ground state
binding "energy 122.4 eV. Its is in ground state. Then:
(A) Its atomic number is 3
(B) An electron of90eV can exciteit
(C) An electron of kinetic energy nearly 91.8 eV can be
brought to almost rest by this atom
(D) An electron of kinetic energy 26 eV may emerge
from the atom when electron of kinetic energy
125 eV collides with this atom
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Answer:
Answer is A and D.
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