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What is the valency of Phosphorus |
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Answer» Valency of phosphorus is 3 Phosphorus has valency 3.The valence (or valency) of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.In\xa0PH3\u200b, P\xa0is combined to 3\xa0H\xa0atoms, so the valency of phosphorous is\xa0+3. The number of\xa0valence\xa0electrons or the number of electrons in the outermost shell of\xa0phosphorus\xa0is 3. - Thus, one atom of\xa0phosphorus\xa0is capable of combining with three atoms of hydrogen in order to form phosphine (PH3). Therefore, the\xa0valency of phosphorus\xa0in PH3 is +3. |
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