Question

The atomic number of natural radioactive element is _________.i) greater than 82
ii) less than 82
iii) not defined
iv) atleast 92

Answer 1

greater than 82 is the radioactive elements atomic number

Answer 2

Answer:

The atomic number of natural radioactive element is greater than 82

Explanation:

All elements with atomic numbers greater than 82 are radioisotopes meaning that these elements have unstable nuclei and are radioactive .

Naturally occurring radioactive elements include radium, thorium, and uranium

Hence

The atomic number of natural radioactive element is greater than 82