Brainliesttt asap!me : )

which of the following is a reasonable ground-state electron configuration?

1s22s22p63s2
1s22s22p63s23d4
1s22s22d102p3
1s22s22p32d6

The correct ground-state electron configuration:

Explanation:

According to Aufbau rule :

The electron will first enter in the orbital with the lowest energy and after occupying the orbital with lower energy is goes top higher energy orbital.

The energy of the orbital is given by: (n+l)

For example: 1 s =(1+0) = 1, 2s = 2 + 0 = 2, 2p = 2 + 1= 3 etc.

So, the order of the orbitals with increase in energy is:

1s<2s< 2p<3s<3p <4s <3d<4p<5s<4d<5p<6s<4f< 5d<6p<7s<5f<6d<7p ....so on.

So, from the given option the correct ground-state electron configuration:

A ) 1s22s22p63s2 is a reasonable ground-state electron configuration

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

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