List the seven colors of the electromagnetic spectrum by temperature, beginning with the coolest

10-15

(size of a nucleus)

10-11Gamma RaysCancer Treatment

10-10

(size of an atom)X-RaysMaterials testing

Medical x-rays

10-8UltravioletGermicidal, "black light", suntan

10-6

(diameter of a bacteria)

Visible Colors

Optics

10-5   -   10-3InfraredHuman body radiation

10-2

(size of a mouse)MicrowaveMicrowave ovens, atomic clocks

10 0

(one meter, the size of a man)

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Radar, Television, F.M. Radio, International Short-wave

10 3

(size of a village)Radio frequency (RF)A.M. Radio

10 6

(distance from Washington D.C. to Chicago)Audio frequencyLong-wave broadcast

10 8

(distance to the moon)

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Brain wav

Explanation:

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

i think it is true since you can test the answer and can use observations to complete it.