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प्रश्न
The element which has the maximum number of valence electrons is:
(a) Na
(b) P
(c) Si
(d) A
उत्तर
(b) P.
Phosphorus (P) has the maximum number of valence electrons, equal to 5.
Electronic configuration of P (15): K L M
2 8 5
Sodium (Na) has 1, Silicon has 4 and Aluminium (Al) has 3.
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संबंधित प्रश्न
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Mg, Ca, K, Ga
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name of the element,
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Consider the section of the periodic table given below :
| Group numbers |
IA | IIA | IIIA | IVA | VA | VIA | VIIA | O |
| 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 | |
| Li | D | O | J | Ne | ||||
| A | Mg | E | Si | H | K | |||
| B | C | F | G | L |
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(i) Which is the most electro negative ?
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