Chapter 4: Structure of the Atom

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Q
Structure of Atom

Question:

If Z = 3, what would be the valency of the element? Also, name the element.

Answer:

The atomic number of the element is equal to the number of protons present in the nucleus of the atom. The number of protons is equal to the number of electrons present in the atom.

Atomic number (Z)= Number of Protons = Number of Electrons

The atomic number (Z) of the given element is 3. Its electronic configuration will be (2, 1). It contains one valence electron. So, its valency will be 1.

The name of the given element is Lithium. The lithium contains 1 valence electron and it's electronic distribution is (2,1).


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