The lowest orbital energy is reached when the number of 1 point electrons with t
ID: 493287 • Letter: T
Question
The lowest orbital energy is reached when the number of 1 point electrons with the same spin is maximized. This statement describes O A Pauli Exclusion Principle O B Planck's constant O Broglie hypothesis O D) Heisenberg uncertainty Principle Hund's rule The valence shell of the element X contains 2 electrons in a 1 point 5s subshell. Below that shell, element x has a partially filled 4d subshell. What type of element is X? O main group element O B) chalcogen O D) transition metal O alkali metalExplanation / Answer
1. E. - First it occupies single electron in orbitals with same spin.
2. D - The transition metals had d- sub shell.
3. A - For stability the electron shifts from S to d-orbital. Because d is more stable than s-orbital.
4. C - It is impossible to know the position and momentum of electron.
5. C - Greater the mass the wavelength will be short.
6. A
7. C - Nickel found the 4 principle quantum numbers in ground state.
8. D
9. B . - 3 is not in the 5d sub shell. It has -2, -1,0,+1,+2
10. A. - X-ray has the shortest wavelength
11. A
12. E
13. E
14. D
15. C
16. A
17. A
18. B
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