Classification ...

Among the following which one has the greatest affinity for electrons?

Which is the chemically most active element?

The outermost configuration of the least reactive element is:

From Electronic configuration from $$1{ s }^{ 2 }2{ s }^{ 2 }2{ p }^{ 6 }3{ s }^{ 2 }3{ p }^{ 6 }4{ s }^{ 1 }$$ to $$1{ s }^{ 2 }2{ s }^{ 2 }2{ p }^{ 6 }3{ s }^{ 2 }3{ p }^{ 5 }4{ s }^{ 2 }$$ an electron would:

Number of orbits present in argon is:

In a group, basic nature __________ from top to bottom.

After the classification of elements study of elements become____________.

Classification of elements makes the study of physical and chemical properties of elements ________ and __________.

Identify less reactive element from the following :

Which valence shell electrons arrangement is that of a metallic element?