Question

which of the following element is not a metalloid a) boron b) Silicon c) Germanium d) tungsten​

Answer 1

ANSWER (D)

The most commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony and tellurium. The other less recognised metalloids are: carbon, aluminium, selenium, polonium and astatine. Titanium is a lustrous transition metal with a silver color, low density and high strength.

Answer 2

Option D Tungsten is the correct answer.

• A metalloid is defined as an element that contains the properties of both metals and non-metals.
• Metalloids are generally less reactive when compared to metals.
• Generally, in the periodic table, the s-block and d-block elements consist of metals, and the p-block consists of metals, non-metals, and metalloids as well.
• From the given options, Boron belongs to the p-block and it is present in the 13th group. It is considered a metalloid because it contains the properties of both metals and non-metals.

• Silicon belongs to the p-block and it is present in the 14th group. It is considered a metalloid because it contains the properties of both metals and non-metals it has 4 valence electrons it forms both covalent and ionic bonds.

• Germanium belongs to the p-block and it is present in the 14th group. It is considered a metalloid because it contains the properties of both metals and non-metals.

• Tungsten belongs to the d-block and it is present in the 6th B group. Since all the elements in the d-block consist of metals. Hence, Tungsten is considered a pure metal.

Hence, Tungsten (Option D) is the correct answer.