Question

Give reason:
Metal forms positive ions.

Answer 1

We have to remember that the metals are the elements or substance which when prepared and polished have a shiny lustrous surface. Metals are electropositive elements and their outer electrons are loosely bound to them.

Complete step by step answer:
Let’s start with discussing the metals for better understanding of the question. Metals are the elements or substance which when prepared and polished have a shiny lustrous surface. Also metals are the good conductor of both the electricity and heat. Also one more property of metal is that metals are malleable and ductile in nature which means you can form thin sheets out of them and bend them to a certain extent without breaking them.
Coming to the question, metals form positive ions and the reason behind this is that metals are electropositive elements and their outer shell is loosely bound to them so it becomes easier for them to lose some electrons rather than to accept electrons from other elements. Hence, whenever metals lose some electrons the number of protons in the metals exceeds the number of electrons which leads to the formation of positive ions.
We also remember that the negatively charged ions are formed by gaining an electron from another atom or element.

Note: We have to know that the metals along with being lustrous and conduct electricity and heat. In general any substance which can conduct electricity at absolute zero i.e. 0 K can be termed as metal. Metals are used for making jewelleries, windows, towers, houses, electronic devices and almost everything can be made out of metal except few like glass, it's a completely different substance (silicon).