The atoms of various elements combine to acquire a state of ............... energy.

Atoms of different elements combine to form a molecule of

What type of elements are found to occur in the combined state?

The atomic number of an element which can not show the oxidation state of +3 is-

What is the atomic number of an element if the quantum number of the highest energy electron of the element in the ground state are n = 4, l = 1,m = - 1,s= 1/2

The ionisation energy of Li^(2+) atom in ground state is,

What is the energy of a hydrogen atom in the first excited state if the potential energy is taken to be zero in the ground state?

What is the energy of a hydrogen atom in the first excited state if the potential energy is taken to be zero in the ground state?

Sulphur and rest of the elements of group 16 are less electronegative than oxygen, Therefore, their atoms cannot take electrons easily. They can acquire ns^2 np^6 configuration by sharing two electrons with the atoms of other elements and thus, exhibit +2 oxidation state in their compounds. In addition to this, their atoms have vacant d-orbitals in their valence shell to which electrons can be promoted from the p and s-orbitals of the same shell. As a result, they can show +4 and + 6 oxidation states. Oxygen exhibits +2 oxidation state in