  Using Majorana representation of symmetric N-qubit pure states, we have
examined the monogamous nature of the family of states with two-distinct
spinors, the W-class of states. We have evaluated the N-concurrence tangle and
showed that all the states in this family have vanishing concurrence tangle.
The negativity tangle for the W-class of states is shown to be non-zero
illustrating the fact that concurrence tangle underestimates the residual
entanglement in a pure N-qubit state.
