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There are four radioactive decay series ...

There are four radioactive decay series called thorium `(4n)`, uranium `(4n + 2)` actinium `(4n + 3)` and neptunium `(4n + 1)` series. Neptunium series is artificial while other three series are natural. The end productsd of each radioacitve decay series have stable nuclei. All natural decay series terminate at lead but neptunium or artificial series terminate at bismuth.
The end product formed in the disintegration of `._(88)Ra^(222)` is

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There are four radioactive decay series called thorium (4n) , uranium (4n + 2) actinium (4n + 3) and neptunium (4n + 1) series. Neptunium series is artificial while other three series are natural. The end productsd of each radioacitve decay series have stable nuclei. All natural decay series terminate at lead but neptunium or artificial series terminate at bismuth. Actinium series begins with an isotope of

There are four radioactive decay series called thorium (4n) , uranium (4n + 2) actinium (4n + 3) and neptunium (4n + 1) series. Neptunium series is artificial while other three series are natural. The end productsd of each radioacitve decay series have stable nuclei. All natural decay series terminate at lead but neptunium or artificial series terminate at bismuth. ._(86)Rn^(219) is a member of actinium series. Another member of same series is

There are four radioactive decay series called thorium `(4n)`, uranium `(4n + 2)` actinium `(4n + 3)` and neptunium `(4n + 1)` series. Neptunium series is artificial while other three series are natural. The end productsd of each radioacitve decay series have stable nuclei. All natural decay series terminate at lead but neptunium or artificial series terminate at bismuth.
The starting isotope and the end product: isotope of actinium series are

The end product of (4n+2) disintegration series is

Assertion : Thorium, uranium and actinium series are designated as 4n, 4n+2 and 4n+3 series respectively.
Reason : The mass number of all elements in the thorium series are divided by 4 gives a remainder of 2 while those of actinium series gives a remainder of 3 when the mass number is divided by 4.

Assertion : The fourth series (4n+1) starts with plutonium -241 and ends with bismuth -209 is known as Neptunium series.
Reason : Neptunium is a naturally occuring element

Assertion : 4n+1 series is designated as Neptunium series. Reason : The fourth series is not naturally occuring and Neptunium -237 is the longest -lived member of the series.

There are four radioactive decay series called thorium (4n), uranium (4n + 2), actinium (4n + 3) and neptunium (4n + 1) series. Neptunium series is artifical while other three series are natural. End products of each radioactive decay series have stable nuclei. All natural decay series terminate at lead but neptunium or artificial series terminates at bismuth. The starting isotope and the end product isotope of actinium series are:

The end product of (4n +2) radioactive disintegration series is

The end product of `(4n +1)` radioactive disintegration series is

There are four radioactive decay series called thorium (4n) , uranium (4n + 2) actinium (4n + 3) and neptunium (4n + 1) series. Neptunium series is artificial while other three series are natural. The end productsd of each radioacitve decay series have stable nuclei. All natural decay series terminate at lead but neptunium or artificial series terminate at bismuth. The end product formed in the disintegration of ._(88)Ra^(222) is

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