science
Grade-9
Easy
Question
How many electrons, protons, and neutrons, respectively, are there in a phosphorous atom?
- 15, 15, 15
- 15, 16, 15
- 16, 15, 15
- 15, 15, 16
Hint:
The number of electrons, protons, and neutrons in phosphorous is 15, 15, and 16 respectively.
The correct answer is: 15, 15, 16
- The phosphorus has 15 protons and 16 neutrons bound in its nucleus.
- The number of electrons around the nucleus is 15.
- The electrons are distributed as 2, 8, and 5 in each shell.
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