School
NGR
Welcome to Schoolngr.com
Home
School
News
C B T
Classroom
Search SchoolNGR
Search
Saturday, 07 March 2026
Register
.
Login
Your browser does not seems to have Javascript enabled. Please enable Javascript in order to use all the features of this website!
In 24 days a radioactive isotope decreases in mass from 128g to 2g. What is the ...
Classroom
Physics Classroom
Neco
Neco 2001
More Topics
In 24 days a radioactive isotope decreases in mass from 128g to 2g. What is the half-life of the radioactive material?
SchoolNGR Classroom
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
A
2.54 days
B
4.00 days
C
4.80 days
D
6.00 days
E
8.00 days
Show Answer
Show Explanation
Correct Answer:
Option B
Explanation:
Prev
Current
Next
Share question on:
Facebook
X
WhatsApp
Study Subjects
Accounts - Principles of Accounts
Animal Husbandry
Aptitude Test
Agricultural Science
Arabic
Auto Mechanics
Basic Electronics
Biology
Bookkeeping
Block laying, bricklaying, and concreting work
Load More Subject
Stay Updated
Follow us on:
Facebook
X