Respuesta :

The number of replaceable electrons in an atom is called its valency.

Examples

  • Monovalent - Hydrogen
  • Divalent - Oxygen

  • Valency = 8 - Number of electron in last shell [When number of electrons in last shell > 4]

  • Valency = Number of electron in last shell [When number of electrons in last shell < 4]

Thanks !

☺️☺️☺️☺️☺️☺️☺️

04essiebear04

Answer:

the combining capacity if an atom is know as valency.

the property of an element that determines the number of other atimd with an aton if the element can combine.