For light travelling in vacuums, ALWAYS use this equation:
c = (wavelength) * (frequency)
c is a constant, speed of light = 3 x 10^8 m/s
make sure all units are consistent!
so frequency = c / (wavelength) = ( 3 x 10^8 m/s ) / (4.257 x 10^ -9 m )
plug it into your calculator and you're done!
The noble gas configuration means that the electronic configuration for Lithium is written in shortcut by starting with the symbol for the nearest noble gas. Note that the noble gas should be lighter than the said element. In here, the nearest noble gas to Lithium is Helium (He). Then, add the additional electrons. Thus, the noble gas configuration would be: <em>[He]2s¹.</em>
<span>A molecule has one carbon-carbon double bond and four monovalent atoms or groups have two isomers.
</span>
<span>When there is different arrangement of atoms in a compound
but having the save molecular formula, these are called isomers of that
compound. These isomers also have different properties due to the change of arrangement
of atoms or different structure.</span>
Answer:
The answer isssssssssssssss DRUM ROLL PLEASEEE
Explanation:
B
Answer:
As of 12/11/2020 Bill Gate's networth is 118.7 billion USD
Explanation: