What is the matching nitrogen base sequence for the gene below? A-
T-
sro
C-
T-
T-
A-
G-
نف
T-
B
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Why are the trends and exceptions to the trends in ionization energy observed?

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

What does a numerical subscript following an element in a chemical formula mean?