Answer:
The correct answer is - Boron, a metalloid.
Explanation:
Boron is a metalloid element that has a crystalline shiny black appearance. It is found in solid-state in nature, It is also a micronutrient for the humans. It is placed in the second period of the periodic table of elements.
The electronic configuration of the boron element is - 1s2, 2s2, 2p1, as it is clear that they have 3 valence electrons in their outer shell, and by electronic configuration, it is clear that they are in 2 energy level (2).
Thus, the correct answer is - Boron, a metalloid.
