Growing your own food instead of trading for other people's food
Answer:
The correct options are: a. the number of additional neutrons of an isotope is too large; d. the number of additional neutrons of an isotope is too small
Explanation:
The chemical elements that have the same number of protons in the nucleus but different number of neutrons are known as isotopes. Isotopes can be stable or unstable.
The isotope having an unstable nucleus, due to the presence of additional neutrons in the nucleus of the atom, is known as a radioisotope.
Also, chemical elements that have atomic number greater than 83 have unstable nuclei and thus they are called radioisotopes.
Answer:
que estuda os astros são os astronomos
Explanation:
Most people work in the tertiary sector.
<span>Most people work in the tertiary sector is false because in developing economies most people work in the primary sector or in the secondary sector. the tertiary sector is about services, which are connected to a form of economy that is already developed. In this case, it is rare that people from developing countries work in the tertiary sector.</span>