Question

why does phospharus has two valencies? ( 3 and 5)

Answer 1

Because it is excited in 2 states P+ and P-. P+ has 3 electrons in its valence shell so it can donate 3 electrons and pair up. ... Because Phosphorous has an empty 3d orbital to accommodate extra electrons & exhibit +5 oxidation state.

Answer 2

Answer:

Taking birth as a woman in the Indian society can be said as curse for the women. Women in India face lots of social issues and problems all through the life which are big struggle for them right from their beginning of life. Female infanticide is the most common practice of killing girl child in mother’s womb in the Indian society. Women in India are considered as burden for their parents and husbands as they think that women are here only to consume money whole life without earning a little bit.