Answer:
4.8
Explanation:
We have assume a right triangle to be formed from the given description so for the altitude we can use the Pythagoras theorem.
a²+b²=c² (where a and b are the side lengths and c is the hypotenuse)
Putting the values that we have.
11²+b²=12²
simplify this,
121+b²=144
subtract 121 from both sides
b²=23
To solve for the missing side/altitude we just need to find the square root of 23
b=√23
It is approximately 4.8
Answer:
For n=3 and l=1=p
It is 3p-orbital.
Magnetic quantum number m
l
have values from -l to +l and total of 2l+1 values.
Forl=1, m
l
values are:
m
l
=−1,0,1 for l=1; total m
l
values =3= Number of orbitals
Each orbital can occupy maximum of two electron
Number of electrons =2×3=6
Thus 6 electrons will show same quantum number values of n=3 and l=1.
Number of elements with last electron in 3p orbitals = 6
A) They have different masses
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