Question

b) The electronic configuration of an element M is 2,8, 3. Then
i) What is the atomic number of this element?
ii)State whether element M is a metal or a non metal.
III) What type of ion will be formed by an atom of element M? Why?
1V)Draw the electron dot structure of the above element.​

Answer 1

Answer:

1:13

2:Metal(Aluminium)

3:Positive ion as it donates 3 electrons to form electronic configuration of the nearest noble gas

Answer 2

Answer:

(i) At. no. = 2+8+3 = 13

(ii) Metal (Aluminium)

(iii) As its valency is 3 (it loses 3 electrons) so it forms +3 ion or anion

(iv) Draw the dot structure of Aluminum and its configuration in 3 shells.

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