IIT-JEE 1998 | Structure of Atom Question 44 | Chemistry

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IIT-JEE 1998

MCQ (More than One Correct Answer)

-0.5

Decrease in atomic number is observed during

alpha emission

beta amission

positron emisson

electron capture

IIT-JEE 1998

MCQ (More than One Correct Answer)

-0.5

The energy of an electron in the first Bohr orbit of H atom is -13.6 eV. The possible energy value(s) of the excited state(s) for electrons in Bohr orbits of hydrogen is (are)

-3.4 eV

-4.2 eV

-6.8 eV

-1.5 eV

IIT-JEE 1984

MCQ (More than One Correct Answer)

-0.25

When alpha particles are sent through a thin metal foil, most of them go straight through the foil because

alpha particles are much heavier than electrons

alpha particles are positively charged

most part of the atom is empty space

alpha particle move with high velocity

IIT-JEE 1984

MCQ (More than One Correct Answer)

-0.25

An isotone of $${}_{32}^{76}Ge$$ is

$${}_{32}^{77}Ge$$

$${}_{33}^{77}Ge$$

$${}_{34}^{77}Ge$$

$${}_{34}^{78}Ge$$

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