Question

Hii guys ✌️✌️

Answer the above question with correct explaination

I will definitely mark brainliest☺️​☺️​

Answer 1

answer is 218,84 or 218,82

Answer 2

Answer:

I get polonium-  218

, element number-   84

Explanation:

Well, I'm assuming by the "element whose mass number is 226" is the isotope radium-

226

.

In that case, for the first decay, we get:

226

88

R

a

→

4

2

H

e

+

222

86

R

n

So, radium will decay into radon-

222

. The next decay will therefore be,

222

86

R

n

→

4

2

H

e

+

218

84

P

o

However, I couldn't find anything on polonium-

218

, so maybe radon-

222

doesn't undergo alpha decay.