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The atomic number of phosphorus atom is:
17
14
16
15
15
The atomic number of an element corresponds to the number of protons in its nucleus. Phosphorus, a non-metallic element in Group 15 of the periodic table, has an atomic number of 15.
The atomic number of an element corresponds to the number of protons in its nucleus. Phosphorus, a non-metallic element in Group 15 of the periodic table, has an atomic number of 15.
Think of the atomic number as a unique 'ID card' or 'Aadhar number' assigned to each element in nature; for Phosphorus, that ID number is strictly 15.
P-15: Phosphorus is the 15th element. You can remember it as 'P' for 'Phosphorus' and '15' for its position.
Z=p=e тАФ Where Z is the atomic number, p is the number of protons, and e is the number of electrons in a neutral atom.
In a neutral phosphorus atom, the atomic number (Z) is 15, which means there are 15 protons and, correspondingly, 15 electrons distributed in the electronic configuration of 1s22s22p63s23p3. This arrangement results in 5 valence electrons, placing it in Group 15 (or V A) of the periodic table.
Atomic number (Z) is a fundamental property defined by the proton count.
Phosphorus is located in Group 15 and Period 3 of the periodic table.
The electronic configuration of Phosphorus is [Ne]3s23p3.
Used in the manufacturing of matches and fertilizers.
Vital component in biological systems (DNA, RNA, and ATP).
Phosphorus was the first element to be discovered scientifically in 1669 by Hennig Brand.
Option A (17) is Chlorine, Option B (14) is Silicon, and Option C (16) is Sulfur.
D is correct тАФ The atomic number of phosphorus is 15.
Always remember the first 20 elements of the periodic table in sequence to quickly identify atomic numbers in exams (H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca).
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