Chemistry, 22.10.2019 04:00 chancler

How are breathing and cellular respiration different

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Living beings both animal and plants require a number of elements to live or mainly survive on the planet, as there are a number of elements like oxygen,O₂ and CO₂ which holds greater significance in the survival or we can simply say for the existence of these living beings. The oxygen,O₂ is present inside the free air and water molecules of oceans which is inhaled or extracted by the living beings respiratory systems. While the CO₂ is present in the form of a waste product inside the plants and animal's body, which requires to be removed from the living beings body or system. This whole process is termed as Breathing or respiration or we can also term it as the process of inhalation and exhalation inside the living beings.While, there is always the requirement and importance for the optimum amount or level of energy for the different processes to take place inside the living cell, this required amount of energy is released from the breakage of the bonds between the different molecules and atoms during the process of cellular respiration.
How are breathing and cellular respiration different

How are breathing and cellular respiration different

Answer from: Quest

assuming that your periodic table has eighteen columns, you should highlight the four elements in the third column from the left of the table.

explanation

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the $3d$ have energy higher than those in the $4 s$ orbital while lower than those of the $4 p$ orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the $4s$ orbital is therefore filled right after $3p$ orbitals and before $3 d$ orbitals.

potassium has electron configuration $[\text{ar}] 4 s^{1}$ and calcium $[\text{ar}] 4 s^{2}$ . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration $[\text{ar}] 4 s^{2} \; 3d^{1}$ and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the $ns^{2} \; (n-1) p^{1}$ and should be highlighted as well.

Answer from: Quest

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

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