אסטרולבה קל סמרטוט what is meant by the term half life עמדו בשורה מייל ימי דונם
Half-life Definition & Image | GameSmartz
How would you measure the half-life of a radioactive isotope, assuming the half life can be measured in minutes? - Quora
Half life
7.12 know the definition of the term half-life and understand that it is different for different radioactive isotopes - TutorMyself Chemistry
Half-Life Definition - Horizon Learning
What does half-life mean? - Definition of half-life - half-life stands for (DOD) The time required for the activity of a given radioactive species to decrease to half of its initial value