a Name three elements that have a single electron in their outermost shells b Name two elements that...

Question

a Name three elements that have a single electron in their outermost shells b Name two elements that have two electrons in their outermost shells c Name three elements with completely filled outermost shells

Accepted Answer

a Lithium Sodium and Potassium are the elements having a single electron in their outermost electron b Magnesium Calcium has two electrons in the outermost shell c Helium Neon and Argon are completely filled These are inert elements

Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 5 - Chapter 5 Periodic Classification of Elements