According to the nonlocality principle?
1. it is impossible to know precisely both the position and velocity of a particle.
2. forces such as gravity and the electromagnetic force can be felt over a large region of space.
3. two particles can “communicate” with each other via em waves that travel at the speed of light.
4. two entangled particles can respond to each other instantaneously, no matter how far apart they are.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

idk what is it? is this a question that you know the answer or u dont

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.