Answer:
B. The principal quantum number (n) is 6, the angular momentum quantum number (ell) is 2, and there are 5 electrons in the subshell.
Explanation:
Given;
electronic configuration of 6d⁵
where;
6 in the configuration shows that, the principal quantum number (n) is 6
d is the subshell
d orbital has angular momentum quantum number (l) of 2
s orbital, l = 0
p orbital, l = 1
d orbital, l = 2
f orbital, l = 3
5 in the configuration means that there are 5 electrons in the subshell
Therefore, 6d⁵ symbol means that "The principal quantum number (n) is 6, the angular momentum quantum number (ell) is 2, and there are 5 electrons in the subshell".
Answer:
Spring constant: .
Work done: .
Explanation:
Convert all values to SI units.
- Length change: ;
- Mass of the weight: .
Assume that the spring-mass system is vertical and is placed on the surface of the earth. The gravitational acceleration constant will be equal to .
Gravitational pull on the weight:
.
That's also the size of the force on the spring. .
The spring constant is the size of the force required to deshape the spring (by stretching, in this case) by unit length.
.
Assume that there's no energy loss in this process. The work done on the spring is the same as the elastic potential energy that it gains:
.
Answer:
When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colours. Each metal gives a characteristic flame emission spectrum.
Explanation: