Which one is the most radioactive?
Correct answer: B. Fr
- A. Cs
- B. Fr
- C. Li
- D. K
Explanation
Francium is radioactive because it contains unstable nuclei and is able to naturally release energy in the process of shedding high speed charged particles, in an attempt to reach a stable state.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Periodic Properties and Trends questions
Smaller the oxidation state of a metal, more will be the:
Heavy water contain isotope of Hydrogen:
Which one is radioactive?
In the presence of KF, AIF3 is soluble in HF, find the complex formed:
Which one of the following pairs show the diagonal relationship in the periodic table?
lonization energy depends on which of the following factors?