SSC JE Mechanical Engineering 1st March 2017 Shift-2 Question 185

Question 185

Francium is highly radioactive; its longest-lived isotope223Fr has a half-life of only _____________.

Create a FREE account and get:

  • Free SSC Study Material - 18000 Questions
  • 230+ SSC previous papers with solutions PDF
  • 100+ SSC Online Tests for Free


Register with


Boost your Prep!

Download App