Describes shape and location of fish fins, but not how each fin type helps a fish move through water, for example, a tail fin acts as rudder and propeller. Canât describe shape or location of fish fins or how each fin type helps a fish move through water.elvic fins, located on the bottom of the fish in front of the anal fin, help balance the fish, keep it level, and prevent it from rolling from side to side. Fish sometimes rest by sitting on their pelvic fins.
The oxidation number of lithium in lithium nitrate is 1. Formula: LiNO3. Hill system formula: Li1N1O3. CAS registry number: [7790-69-4] Formula weight: 68.946. Class: nitrate. Colour: white. Appearance: crystalline solid.
Answers. 1  Lithium in the Table of Elements is indicated as having an Atomic Mass of 7, and, an Atomic Number of 3. The number 3 indicates the number of Protons. The Atomic Mass (7) is the number of Protons + Neutrons. Therefore, total of 7 - 3 Protons = 4 Neutrons. Now, As a Proton has a Positive Charge (+) and an Electron has a Negative charge (-), for the Atom to have no charge (Neutral) the the number of (+) must equal the number of (-). Electrons therefore also equals 3. (2 in Energy Shell No. 1 and 1 in Shell No.2. This is the Valence Electron used in reactions with other Elements).