SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If your element had 15 protons and a mass number of 31 it would be ____
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sulfur-31
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hydrogen-2
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phosphorus-31
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gallium-31
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Explanation:
Detailed explanation-1: -The atomic number also represents the number of protons in the nucleus of all atoms or ions of a particular element. We are told that phosphorus-31 has an atomic number of 15. This means that an atom of phosphorus-31 will have 15 protons.
Detailed explanation-2: -The atom which is having the atomic number of 15 and mass number of 31 is Phosphorus atom.
Detailed explanation-3: -The stable isotope of phosphorus with relative atomic mass 30.973762 and nuclear spin 1/2.
Detailed explanation-4: -Phosphorus has 15 protons and 16 neutrons in its nucleus giving it an atomic number of 15 and a atomic mass of 31.
Detailed explanation-5: -of neutrons = mass no.-no. of protons = 31-15 = 16.
There is 1 question to complete.