It is a binary direct bandgap semiconductor commonly used in light-emitting diodes since the 1990s
Answer:
ii. 
Explanation:
Isoelectric species are the species which have same number of electrons.
From the given options:-
are the isoelectric species.
All the three species have same number of electrons which is equal to 6.
Carbon has 6 electrons.
has 6 electrons.
has 6 electrons.
Answer:
D. exosphere is the outer layer of the thermosphere
Because of the crystal structure of the ice, ice has lower density than liquid water. So the volume of the ice of same mass is greater than water. When melting, the volume will decrease.
Sulfur is not a transition metal so it does not need a Roman numeral the correct answer is Trisulfur Dichloride
