Question 7
arsenic is a metalloid. which statement best describes arsenic?
a
arsenic is similar to a nonmetal because it is a gas at room temperature and similar to a metal because it is not malleable.
b
arsenic is similar to a nonmetal because it is brittle and similar to a metal because it conducts heat and electricity well.
c
arsenic is only similar to a metal because it is not ductile and is a gas at room temperature.
d
arsenic is only similar to a nonmetal because it is a good conductor and is reflective.

B.

Explanation:

It is brittle like a nonmetal but conducts electricity and heat  like a metal.

The correct answer is Option B.

Explanation:

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

Properties shown by metalloids:

Arsenic is a metalloid which belongs to Group 15 and Period 4 of the periodic table.

This element is brittle in nature and thus is similar to non-metals. Also, it conducts electricity and heat and thus is similar to metals.

Hence, the correct answer is Option B.