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).
1 Gestation Period and Pregnancy in Dogs The gestation period is the period of time during which a fetus develops within its mother's womb. 2  This period lasts from fertilization until birth. 3  The gestational period ofâ¦. 4  Identifying the Mourning Dove The Mourning Dove is found throughout North America.ggs hatch 17 to 18 days after laying. Mom and Dad take turns sitting on the eggs and then staying with the chicks after they hatch. Both parents feed them. Ours are now 8 days old.