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).
gestation period see gestation period. incubation period see incubation period. isoelectric period the moment in muscular contraction when no deflection of the galvanometer is produced. latency period. 1. latent period.2. latency stage. latent period a seemingly inactive period, as that between exposure to an infection and the onset of illness (incubation period) or that between the instant of stimulation and the beginning of response (latency, def. 2).estation period see gestation period. incubation period see incubation period. isoelectric period the moment in muscular contraction when no deflection of the galvanometer is produced. latency period. 1. latent period.