A simple cation (obtained from a single atom) takes its name from the name of the element. 3. A simple anion (obtained from a single atom) is named by taking the first part of the element name (the root) and adding the letters IDE. 4. Write the name for the compound by combining the names of the ions.
1 Blue whales give birth after 11 â 12 months of pregnancy and it is estimated that female whales give birth every 2 â 3 years.  killer whale have a pregnancy period of 15 â 18 months, however it is believed that the average pregnancy period is about 17 months. (Females killer whales give birth every 3 â 5 years).
How Long Do Blue Whales Grow? An adult blue whale can reach lengths in excess of 80 â 100 feet and weigh more than 150 tons when fully matured. Even as an infant the blue whale can measure in at around 25 ft and gain as much as 200 pounds per day during its first year of birth. Although blue whales are massive creatures they have a relatively slender body and a flat aerodynamically U-shaped head, which allows the whale to easily move through the water at high speeds.