How are the number of protons represented on the periodic table

a. atomic mass

b. isotope

c. atomic number

d. mass number

Option C, Atomic number

Explanation:

All element are arranged in a periodic table as per their atomic number. While moving across each group of periodic table from left to right, one can see that atomic number increases towards the right end of  each group.

An atomic number is nothing but the number of protons in the nucleus of an element. Thus , indirectly it is the proton number that defines the position of an element in a periodic table.

Hence, option C is correct.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.