asked in category: General Last Updated: 21st April, 2020

# How many electrons does phosphorus 31 have?

Isotopes are named for their mass numbers. So, this element has 15 protons (atomic number), 15 electrons, and 16 neutrons (mass number minus atomic number). This isotope is phosphorus-31, which has atomic number 15.

Also know, how many electrons and neutrons does phosphorus have?

To find the number of neutrons, subtract the atomic # from the mass #. 31-15=16 neutrons inside the nucleus. Phosphorus – 15 protons, 16 neutrons, and 15 electrons Level 1 = 2 electrons, Level 2 = 8 elec., Level 3 = 5 elec.

Similarly, what is the atomic number of the atom 31 15 P? Phosphorus (P). Diagram of the nuclear composition and electron configuration of an atom of phosphorus-31 (atomic number: 15), the most common isotope of this element. The nucleus consists of 15 protons (red) and 16 neutrons (blue).

Then, how many electrons can phosphorus hold?

eight electrons

Which element has a mass number of 31?

Gallium

4

21st April, 2020

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