Write the name and symbol of the element from the description:
a. The atom having the smallest size:
→ The atom having the smallest size is 2He.
(The atomic radius of He is 31 pm)
1 Mark
b. The atom having the smallest atomic mass:
→ The atom having the smallest atomic mass is 1H.
1 Mark
c. The most electronegative atom:
→ The most electronegative atom is 9F.
[Fluorine (2,7) has the highest tendency to accept electron to achieve noble gas configuration (2,8)]
1 Mark
d. The noble gas with the smallest atomic radius:
→ The noble gas with the smallest atomic radius is 2He.
1 Mark
e. The most reactive nonmetal:
→ The most reactive nonmetal is 9F
1 Mark

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This page was last modified on
01 August 2019 at 01:34