What is name of the term that describes the time that it takes for 50% of a radioisotope to decay?

What event caused south carolina to secede from union in 1860

To reinforce your understanding of the early days of the great depression, take the perspective of president herbert hoover. from his perspective, write three to five sentences that develop and expand on the following topic sentence: i believe the best way to end the great depression is . .

Enlightenment thinkers most contributed to the development of whichpolitical idea? a. religious leaders should play the largest role in establishing asociety's laws.b. democratic governments have the responsibility to protect humanrights.c. criminals must be punished harshly if a society is to maintainorder.d. written constitutions place unnecessary restrictions ongovernments' powers.