Anything that influences the valence electrons will affect the chemistry of the element. Which one of the following factors does not affect the valence shell ?

Assertion (A) : Anything that influences of the valence electorns will affect the chemistry of the element. So, the nuclear molar mass does not affect the valence shell. Reason (R ) : Nucleus contains protons and neutrons, whereas protons i.e. nuclear charge affects the valence shell but neutrons doe not.

Assertion (A) : Anything that influences of the valence electorns will affect the chemistry of the element. So, the nuclear molar mass does not affect the valence shell. Reason (R ) : Nucleus contains protons and neutrons, whereas protons i.e. nuclear charge affects the valence shell but neutrons doe not.

Consider the following statements and arrange in the order of true/false as given in the codes. S_1 :In modern periodic table each block contains a number of columns equal to the number of electrons that can occupy that sub-shell S_2 :The greatest increase in ionization enthalpy is experienced on removal of electron from core noble gas configuration S_3 :The size of the isoelectronic species is effected by eletron-electron interaction in the outer orbitals S_4 :Any thing that influences the valence electrons will affect the chemistry of the element and the valence shell is not affected by nuclear mass.

Which of the following gases does not have eight electrons in the valence shell ?

Which of the following contains only one unpaired electron in the valence shell?

What are valence shell and valence electrons?