That is not how nuclear bombs are made.
This will happen naturally if the element is radioactive and can be done artificially by means of neutron bombardment in a nuclear reactor or in the heart of a star.
It would become a different element. It could become radioactive.
Helium is chemically inert and does not combine with any other element (including thallium).
It would become an atom of a different element. This can only happen during radioactive decay, nuclear fusion, or nuclear fission.
By losing protons. Atomic number determines what kind of element it is. ---------------------------- This can only happen if the nucleus changes its number of protons because the nucleus is unstable and undergoes radioactive decay. As it changes it will emit some form of radiation
When the number of neutrons changes, the atomic mass will change.
The stability of an atom depends on a balance between the numbers of protons and neutrons in its nucleus and also on the total size of its nucleus; atoms with sufficiently large nuclei are inherently unstable. Please see the link.
an element becomes a totally different element..
By losing protons. Atomic number determines what kind of element it is. ---------------------------- This can only happen if the nucleus changes its number of protons because the nucleus is unstable and undergoes radioactive decay. As it changes it will emit some form of radiation
In order for an atom of an element that is not radioactive to become radioactive, the isotope has to change. This can happen as a result of neutron capture. Neutron capture can simply change the isotope of an atom, as when cobalt-59, which is not radioactive, captures a neutron to become cobalt-60, which is radioactive. Neutron capture can also result in immediate radioactive decay of the atom struck, even if it is not radioactive. For example helium-3 can capture a neutron to produce two atoms of hydrogen, one of hydrogen-3 and one of hydrogen-1.
by radioactive material fell in the air
Yes, water can become radioactive if it comes into contact with radioactive materials or is exposed to radiation. This can happen in situations such as nuclear accidents or when radioactive substances are improperly disposed of.