Question

use the partial periodic table to help answer the question. which elements are semiconductors, may be malleable or brittle, and have high luster? choose the two correct answers.

Explanation:

Step1: Recall properties of metalloids

Metalloids are semiconductors, can be malleable or brittle and have high luster.

Step2: Identify metalloids on periodic - table

Metalloids are located along the staircase - like line on the periodic table.

Answer:

(Assuming R and B are metalloids based on their position relative to the staircase - like region in a typical periodic table layout where metalloids are located) R, B