A particular hydrogen like atom has its ground state binding “ene… - Vidyadip

MCQ

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 of $90\,eV$ can excite it.
C
An electron of kinetic energy $2.6\,eV$ may emerge from the atom when electron of kinetic energy $125\,eV$ collides with this atom.
✓
all of the above

✓

Answer

Correct option: D.

all of the above

d

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