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there are two atoms: A and B. Atom A has 7 electrons and atom B has 13 electrons. which of the following is TRUE

a) Atom A is more reactive than atom B

b)Atom B will give up electrons to form bonds

c) both atoms will gain electrons to become stable

d) neither atom is reactive

Answer :

Adioabiolago

The statement which is true about Atom A and Atom B is; Choice B: Atom B will give up electrons to form bonds.

According to the question;

For Atom A:

  • It has 7 electrons

  • the electron configuration is; 1s²2s²2p³

  • Therefore, it has 5 valence electrons.

For atom B:

  • It has 13 electrons

  • the electron configuration is; 1s²2s²2p⁶3s²3p¹

  • Therefore, it has 3 valence electrons.

Since, electrons need 8 electrons to assume a full octet;

Consequently, Atom B will give up electrons to become stable.

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