Copernican heliocentrism<span> is the name given to the astronomical </span>model<span> developed by </span>Nicolaus Copernicus<span> and published in 1543. It positioned the </span>Sun<span> near the center of the </span>Universe<span>, motionless, with Earth and the other planets rotating around it in circular paths modified by epicycles and at uniform speeds. The Copernican model departed from the </span>Ptolemaic<span> system that prevailed in </span>Western culture<span> for centuries, placing Earth at the </span>center of the Universe<span>, and is often regarded as the launching point to modern </span>astronomy<span> and the </span>Scientific Revolution.
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.
A settlement, locality, or inhabited place is a neighbourhood where people reside in geography, statistics, and archaeology. From a small cluster of houses to the biggest metropolis with surrounding urbanised regions, a settlement's complexity can vary greatly.
One of the most crucial resources available to settlement is the usage of land use. The types of lands that are available to us are diverse. Some of these sites are agricultural, and farmers often work on them to harvest and raise vegetables for the public. The land use of the property is industrial land, which is where businesses construct factories and where most goods are made and processed. There are additional types of land use for habitation, referred to as residential land. A brave group of Vikings headed by Leif Eriksson arrived in North America and founded a settlement 500 years before Christopher Columbus.
Learn more about settlement here:
brainly.com/question/13293934
#SPJ9
Answer:
C. 70% (water covers ⅔ of Earth's surface)
