Classification ...

Element having greatest tendency to lose electrons is?

Which of the following order is wrong?

Element of second period are called:

The property which regularly increases down the group in the periodic table is:

The trend of electron affinity along a period____________

The element with configuration $$1s^2,2s^2,2p^6,3s^2$$ would be :

Electronic configuration $$1s^2 2s^2 2px^1 2py^1 2pz^1$$ corresponds to :

In a period, from the left to right the electron affinity increases, but alkaline earth metals have lower electron affinity than alkali metals because______

From the following, identify least reactive element:

 Which alkali metal element is the most reactive?