What is the number of electrons lost by a metal atom to form a positive ion called?

  • A
    Atomic number
  • B
    Valency
  • C
    Orbit
  • D
    Atomic mass

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$(i)$ $KCl$
$(ii)$ $HCl$
$(iii)$ $CCl_4$
$(iv)$ $NaCl$

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In which state does the element phosphorus exist at room temperature?

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