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प्रश्न
Element P has atomic number 19. To which group and period, does P belong? Is it a metal or a non-metal? Why?
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उत्तर
The atomic number of P = 19
Its electronic configuration = 2, 8, 8, 1
Group no. of the element = 1A
Period no. of the element = 4
P is a metal.
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