Chemistry, 07.10.2019 07:30 shadowolf017

How many electrons in a cesium atom can have the quantum numbers of n = 3 and ml = -2

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Answer from: kelseydavid69

CESIUM CONFIGURATION

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s1

N = 3 meaning third orbit

M = -1 means P orbit or B orbit

SO THERE ARE TWO ELECTRONS WITH M = -1 IN P ORBIT AND TWO ELECTRONS WITH M = -1 IN D ORBIT

Answer from: emma3216

"n" represent the 3 energy level
"ml" represent the orbital

cesium atom configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s1
since the n is 3, it presents the third energy level, we are talking about the 3s2 3p6 and 3d10 of the configuration

remember that each subshell has a specific number of orbital, and each orbital can hold 2 electrons.

s= 1
p= 3
d= 5
f= 7

a good way to remember the ml quantum number is to think of them as in a ruler with respect to the number of the orbitals. like this:

s (1)= 0
p (3) = -1, 0, +1
d (5) = -2, -1, 0, +1, +2
f (7) = -3, -2, -1, 0, +1, +2, +3

as you can see, only the "d" and "f" subshell have the ml "-2". but according to our electron configuration, we only have 6d10 not "6f". so we only have one orbital having -2, which mean 2 electrons (since there are two electrons per orbital)

Answer from: Quest

mechanics (greek is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation:

Answer from: Quest

gravity causes stares to cluster i think so