Question

The metalloid in group 15 closest in mass to the noble gas krypton

Answer 1

Hey.

Here is the answer.

Arsenic (As) with atomic no. 33 and atomic weight 74 g is the metalloid in group 15 closest to Kr.

Thanks.

Answer 2

Answer: The metalloid in Group 15 is Arsenic

Explanation:

Metalloids are defined as the elements which show intermediate properties between metals and non-metals. There are 7 metalloids in the periodic table. They are: Boron, Silicon, germanium, Arsenic, Antimony, Tellurium and Polonium.

Krypton is the noble gas present in Period 4 of the periodic table. It has a mass of 83.8 g/mol

The metalloid present in Period 4 and Group 15 of the periodic table is Arsenic. This element has a mass of 74.94 g/mol

Hence, the metalloid in Group 15 is Arsenic