Which of the following element has the maximum electron affinity_____?

Related Mcqs:

1. When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?

   A. 0.33 nm
   B. 0.34 nm
   C. 0.35 nm
   D. 0.36 nm

2. An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

   A. Group IA
   B. Group IB
   C. Group VIIA
   D. Group VIII

3. The maximum number of electron in a sub shell with ? = 3fs______________?

   A. 6
   B. 10
   C. 14
   D. 18

4. Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?

   A. The nature of its oxides
   B. The charge on its ions
   C. The formula of its oxide
   D. Its number of isotopes

5. Which of the following will have highest value of electron affinity_________________?

   A. F
   B. Cl
   C. Br
   D. I

6. The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________?

   A. 7
   B. 10
   C. 12
   D. 16

7. Wavelength of electron was verified by_________________?

   A. Moseley
   B. Davisson and Germer
   C. Einstein
   D. Roentgen

8. Unpaired electron in a molecule gives ______________ character ?

   A. Ferromagnetic
   B. Paramagnetic
   C. Diamagnetism
   D. Both A & B

9. Higher value of electron affinity means__________________?

   A. Atom will lose electron easily
   B. Atom will gain electron easily
   C. Atom may form di-positive ion
   D. The reason is unknown

10. The halogen having highest electron affinity is_____________________?

    A. Fluorine
    B. Chlorine
    C. Bromine
    D. Iodine