An element has an atomic number 16. State:
(i) The period to which it belongs.
(ii) The number of valence electrons.
(iii) Whether it is a metal or non-metal.
An element has an atomic number 16. State:
(i) The period to which it belongs.
(ii) The number of valence electrons.
(iii) Whether it is a metal or non-metal.
Answer(1)- Third period
Concept- First of all we write the complete electronic configuration. The principal quantum number of the valence shell represents the period of the element.
Electronic configuration of an element having atomic number 16=.
In the above configuration principal quantum number is 3, therefore the period of the element is 3.
Answer(2)- Six
Concept- Valence electron is defined as the number of electrons in the outermost shells. Here the outermost shell is three which contains six electrons.
Answer(3)- Non-metal
Concept- From the above configuration we see that the element has a gain tendency of electrons to complete their octet, therefore it is a Non-metal.
Answer(1)- Third period
Concept- First of all we write the complete electronic configuration. The principal quantum number of the valence shell represents the period of the element.
Electronic configuration of an element having atomic number 16=.
In the above configuration principal quantum number is 3, therefore the period of the element is 3.
Answer(2)- Six
Concept- Valence electron is defined as the number of electrons in the outermost shells. Here the outermost shell is three which contains six electrons.
Answer(3)- Non-metal
Concept- From the above configuration we see that the element has a gain tendency of electrons to complete their octet, therefore it is a Non-metal.
