Assertion: Metals like Na, K, Ca, Mg are never found in their free state in nature. Reason: Metals are very reactive elements, so it combines with other non -metals to complete its

A)Both Assertion and Reason are correct and reason is the correct explanation of assertion.
B)Both Assertion and reason are correct but reason is not the correct explanation of assertion. C)Assertion is correct and reason is incorrect.
D)Assertion is incorrect and reason is correct

Answer quick pls ASAP fast

A) Both Assertion and Reason are correct and reason is the correct explanation of assertion.

im not sure, Cause It is Confusing me!!

just Tell me if its Right or Wrong!!

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.