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an atom Y has atomic number 13. It loses three electrons in order to be stable.

i.) What is the proton number and electron number of the atom

a)before it loses electrons
b) after losing electrons


ii.) name the tyoe of ion formed by the atom when it loses three electrons
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Respuesta :

(A) proton number= 13 electron =13
(B) proton number=10 electron =10

An atom Y has atomic number 13, so the no. of electrons and protons in it is 13 and after loses it will form cation and no. of electrons will become 10.

What is atomic number?

Atomic number of an atom is equal to the number of electrons or protons present in that atom.

  • Before loses electrons

Number of protons and electrons in the atom before loses electron is 13, as given atomic number is 13.

  • After loses 3 electrons

Number of elctrons in the atom is 10 and number of protons is 13, as protons are present in the nucleus.

  • Name of the ion which is formed by the atom is cation as it bears positive charge on it.

So, number of protons is always same i.e. 13 within the atom and no. of electrons after losing 3 electrons is 10.

To know more about atomic number, visit the below link:
https://brainly.com/question/1805828