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1989 WAEC Chemistry Theory (a) The half-life of 56/25 Mn is 9.3 x 10\(^3\)S. What does the statement mean?...

Chemistry
WAEC 1989

(a) The half-life of 56/25 Mn is 9.3 x 10\(^3\)S. What does the statement mean?

(b) Give the three types of radiation that are usually emitted by radioactive substances.

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Explanation

(a) The time taken for half amount of \(^{56}Mn\) to decompose is the half life which is 9.3 x 10\(^{3}\)s

(b) They are the Alpha, the Beta and Gamma particles.


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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free