Question

15 Name the type of elements, which have their
(1) outermost shell complete
(in) outermost shell incomplete
(in) two outermost shell incomplete
(iv) one electron short of octet
(v) two electrons in the outermost orbit.​

Answer 1

Step-by-step explanation:

Answers

i)Two elements which have their outermost shell complete are:

He[which has 2 electrons in outermost shell and is complete]

Ne[which has 8 electrons in outermost shell and is complete]

ii)Two elements which have outermost shell incomplete are:

Li [which has 1 electron in outermost shell

Na[ which has 1electron in outermost shell{2,8,1}]

iii)Two elements which have two outermost shells complete

Ne[ which has {2,8} electrons , complete two outermost shells]

Ar [which has {2,8,8} electrons , complete two outermost shells]

iv)Two outermost shells incomplete :

Fe [[which has the atomic number 26,{2,8,14,2}with two electrons in the outermost shell.]

Mn [ which has the atomic number 25,{2,8,13,2}with two electrons in the outermost shell.]

v)One electron short of octet: Fluorine [which has the configuration {2,7} and there is one electron less from the octet configuration {2, 8}

vi) Two electrons in the outermost orbit: Fe [which has the atomic number 26,{2,8,14,2}with two electrons in the outermost shell.

Hope this helps you....:)