What type of light is emitted when an electron falls from n 3 to n 1 What is the wavelength?
| Electron Transition | Energy (J) | Wavelength (nm) |
|---|---|---|
| Lyman Series ( to n=1) | ||
| n=2 to n=1 | 1.632 x 10 -18 | 122 |
| n=3 to n=1 | 1.93 x 10-18 | 103 |
| n=4 to n=1 | 2.04 x 10-18 | 97.3 |
What is the wavelength of the light emitted?
– We know that there is a relation between wavenumber and wavelength and it is as follows. Where λ = Wavelength of the light. – So, the electrons release 486 nm of light when it jumps from higher energy level to lower energy level in the atom.
What is the correct electron configuration for Zn 2+?
1 Answer. The electron configuration of Zn2+ is 1s22s22p63s23p63d10 .
What is the correct electron configuration for Zn 2 +?
The electron configuration of Zn2+ is 1s22s22p63s23p63d10.
Which is more stable Zn or Zn2+?
Ca2+ ion is more stable than Zn+ion. Reason : An ion with ‘inert gas configuration’ is more stable than an ion with ‘pseudo inert gas configuration’. Ca2-(2,8,8) has inert gas configuration i.e., ‘electron-octet’ in the valence shell. Zn2+(2,8,8) has 18 electrons in the outermost energy level.
Is Zn 2 stable?
Conditional constants of the complexes stability have been determined. Cu(II) ions formed more stable ML2 coordination compounds in comparison with Zn(II), zinc(II) ions are efficiently bound to the derivative of picolinic acid hydrazide to form the ML complex.
Why Cu2+ is Coloured but Zn2+ is Colourless?
Why? Ans. Cu2+ (3d 9 4s 0) has one unpaired electron in d-subshell which absorbs radiation in visible region resulting in d-d transition and hence Cu2+ salts are coloured. No radiation is absorbed for d- d transition and hence Zn2+ salts are colourless.
Why is Cu+ not Coloured?
the colour of transition elements is due to the presence of unpaired electrons. cu+ is colourless as its outermost configuration is 3d10 …so there are no unpaired electrons which causes the colour .
What is the Colour of ZN2+?
hydrated ions
| name | formula | colour |
|---|---|---|
| nickel | Ni2+ | green |
| copper | Cu ^2+^ | blue |
| copper-ammonia complex | [Cu(NH3)4]2+ | deep blue |
| Zinc | Zn2+ | none |
What Colour is chromium 3+?
Chromium(III) chloride (also called chromic chloride) describes any of several compounds of with the formula CrCl3 • xH2O, where x can be 0, 5, and 6. The anhydrous compound with the formula CrCl3 is a violet solid. The most common form of the trichloride is the dark green hexahydrate, CrCl3 • 6H2O.