When atoms share six electrons, they are joined by a double bond. (.5 points)
a. True
b. False?
Is False
Potassium is placed where it is based on its properties and it's reactivity. It's also placed there based on it's atomic number.
Answer:
A
Explanation:
Quaternary structure of proteins is composed of two or more polypeptide chains. Insulin has two; one alpha and one beta chain. The two chains are joined together by disulfide bonds at two points (at cysteines). Other examples of quaternary proteins structures are DNA polymerase and hemoglobin.
Answer:
The atom that has lost an electron becomes a positively charged ion (called a cation)
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