IIT-JEE 1985 | Structure of Atom Question 77 | Chemistry

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IIT-JEE 1985

MCQ (Single Correct Answer)

-0.25

Electromangnetic radiation with maximum wavelength is:

ultraviolet

radiowave

X-ray

infrared

IIT-JEE 1984

MCQ (Single Correct Answer)

-0.25

Correct set of four quantum numbers for the valence (outermost) electron of rubidium (Z = 37) is

5, 0, 0, $$ + {1 \over 2}$$

5, 1, 0, $$ + {1 \over 2}$$

5, 1, 1, $$ + {1 \over 2}$$

6, 0, 0, $$ + {1 \over 2}$$

IIT-JEE 1984

MCQ (Single Correct Answer)

-0.25

The increasing order (lowest first) for the values of e/m (charges/mass) for electron (e), proton (p), neutron (n) and alpha particle ($$\alpha$$) is:

e, p, n, $$\alpha$$

n, p, e, $$\alpha$$

n, p, $$\alpha$$, e

n, $$\alpha$$, p, e

IIT-JEE 1984

MCQ (Single Correct Answer)

-0.25

Which electronic level would allow the hydrogen atom to absorb a photon but not to emit a photon?

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