The following picture shows the electron populations of the bands of MO energy levels for elementary silicon. 
-In this picture the band gap is given by letter(s)
Definitions:
Agricultural
Related to the cultivation of land, and breeding of animals and plants to provide food, fiber, medicinal plants, and other products.
Unilineal Descent
A kinship system in which lineage is traced through either the maternal or paternal line exclusively, not both.
Common Ancestry
The shared genetic heritage or lineage among individuals or species.
Phratry
A social unit or grouping in some tribal societies based on clan affiliations or kinship, often involved in ceremonies and mutual aid.
Q42: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4940/.jpg" alt=" U undergoes alpha
Q62: Which of the molecules shown below are
Q68: Which of the following metals occurs in
Q104: What are the most abundant mineral in
Q118: Transition elements are located in the _-block
Q124: Which has the lowest melting point?<br>A)La<br>B)W<br>C)Os<br>D)Hg
Q142: What is the complementary mRNA sequence to
Q153: Which unit of radiation describes the amount
Q164: Vanadium in the +5 oxidation is most
Q169: Which statement is most inconsistent with the