Chemistry, 02.08.2019 00:30 haileyhale5

Which component did the development of the cell theory involve? a. different ideas from different scientists b. the efforts of one scientist c. work with computer models d. complete agreement among scientists

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Answer from: Tnaaasty5901

D. complete agreement among scientist.

Explanation:

The development of cell theory is given by three major scientist (Matthias Schleiden, Theodor Schwann and Rudolf Virchow). They gave three major principles which are as follows.

1. Every living thing in the world is build up of cells.

2. The most basic unit of life is cell.

3. Every cell come from already existing cell.

Answer from: alexabrandon1848

D. complete agreement among scientists

Explanation:

got it right

Answer from: Quest

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

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.

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Which component did the development of the cell theory involve? a. different ideas from different s...