Question

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

Answer 1

Answer:

(i) Helium (He), neon (Ne), and argon (Ar), as group 18 elements, have outer electron shells that are full or satisfy the octet rule. This makes them highly stable as single atoms. Because of their non-reactivity, they are called the inert gases or noble gases

(ii) 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

(iii) Two outermost shell incomplete - Transition elements.

(iv)One electron short of octet is Fluorine F.

(v) element with two electrons in the outermost shell was alkaline earth metals.