Question

Give reasons:
1.germanium is also called a metalloid
2.zirconium is known as a strategic metal

Answer 1

a) It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Pure germanium is a semiconductor with an appearance similar to elemental silicon. ... Winkler named the element after his country, Germany.

b)Strategic metals are those metals which are required for the economic development and defence of a country. Zirconium is also used for defence equipment of country hence known as strategic metal. ... Nitrogen is considered as inert gas and it prevents the oxidation of food.

Answer 2

Answer:

1) Germanium is shiny like metals but brittle like non-metal. It shows some of the properties like metal and some like non-metals. Most important it behaves as semi-conductor like Silicon hence it is considered as metalloid.

Sorry bro don't know other one.