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Stella [2.4K]
3 years ago
10

Describe the classification of electromagnetic radiation.

Chemistry
1 answer:
Otrada [13]3 years ago
7 0

Answer:

The EM spectrum

Explanation:

The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.

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Which statement about Schrödinger's theory of the atomic model is true?
vekshin1

Answer : Option C) It explained the odds of finding the position of an electron.

Explanation : Schrödinger's theory of the atomic model is true for the probability of finding the electron around the nucleus. Schrödinger used odd mathematical equations to describe the likelihood of finding an electron in a certain position around the nucleus. This atomic model was known as the quantum mechanical model of the atom. He posed an equation which is now called as the Schordinger’s Wave Equation, which incorporates both the wave-like and particle-like behaviors of electrons, which stated that electrons can act like waves/light and particles. Which later helped to develop the uncertainty principle for finding the probable position of the electron.

4 0
4 years ago
Hydrocarbons consisting of short carbon chains are ________.
Tresset [83]

Answer:

A

Explanation:

Hydrocarbons with short chain lengths are more volatile than those with longer chains. A practical example of this can be seen in the first few members of the alkane series. They are mostly gaseous in nature and this is quite a contrast to the next few members which are solid in nature.

As we move down the group, we can see that there is an increase in the number of solids. Hence, as we go down the group we can see a relative increase in order and thus we expect more stability at room temperature compared to the volatility of the shorter chain

4 0
4 years ago
A star is estimated to have a mass of of 2 X 10^36 kg. Assuming it to be a sphere with an average radius of 7.5 X 10^5 km, calcu
Trava [24]
113234253616418966.7374380750177kg/m^3
4 0
3 years ago
Iodine-131 is a radioactive isotope. after 8.00 days, 50.2% of a sample of 131i remains. what is the half-life of 131i?
barxatty [35]
 The half life  of 131 i  is  8.06  days

   calculation

by  use  of concentration  time   equation  for  radioactive  decay

In Nt/No = -Kt

where  Nt/No  is the  fraction  of the sample   remaining  at  time T

convert 50.2%  in  decimal  = 50.2/100 = 0.502

therefore = In  0.502 = -  K 8.0 t
                     - 0.689 =-8.0 k
divide both side by 8.0

                       K =  0.860

t1/2  =  0.693/K

t1/2 = 0.693/0.860 =  8.06   days

3 0
3 years ago
_______ are hollow spaces in the earths crust?.
netineya [11]
I think that answer would be caves 
6 0
3 years ago
Read 2 more answers
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