Subject: Chemistry
Book: General Chemistry
Half-life is the time required for half of a radioactive substance to decay. It is a constant unique to each isotope (e.g., carbon-14 has a half-life of ~5,730 years). By measuring remaining activity or parent-daughter ratios, scientists determine ages of archaeological artifacts or geological samples. Knowledge of half-life guides nuclear waste management and medical usage of radioisotopes for diagnostics or therapy.
Which element has the atomic number 79?
View QuestionWhich acid is often referred to as the "king of chemicals"?
View QuestionWhat is the chemical formula for magnesium sulfate?
View QuestionWhat is the chemical formula for potassium permanganate?
View QuestionWhich compound is commonly known as quicklime?
View QuestionWhich element is represented by the symbol 'Cl'?
View QuestionWhat is the chemical formula for bleaching powder?
View QuestionWhat is the chemical name for CH4?
View QuestionWhat is the chemical formula for propanol?
View QuestionWhat is the chemical formula for sodium hydroxide?
View Question