Help!! fast pls. what is the second quantum number for one of the electrons in the 4p energy sub level of bromine
1 answer:
The second quantum number for one of the electrons in the 4p energy sub level of bromine is l = 1 .
<h3>What are Quantum Numbers ?</h3>Those set of numbers which describe the energy level and position of an electron are called Quantum Numbers.
There are 4 types of quantum numbers :
Principle Quantum Numbers
Azimuthal Quantum Number
Magnetic Quantum Number
Spin Quantum number
the bromine atom the one electron in 4p energy sublevel,
it is in 4rd shell , n= 4 ,
it is in 'p' orbital l = 1
therefore value of m = -1 , 0, 1
= +1/2 or -1/2
The second quantum number for one of the electrons in the 4p energy sub level of bromine is l = 1 .
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Given :
A 10.99 g sample of NaBr contains 22.34% Na by mass.
To Find :
How many grams of sodium does a 9.77g sample of sodium bromine contain.
Solution :
By law of constant composition , in any given chemical compound, the elements always combine in the same proportion with each other.
Therefore , percentage of Na by mass in NaBr will be same for every amount .
Percentage of Na in 9.77 g NaBr is 22.34 % too .
Gram of Na = .
Hence , this is the required solution .