Which of the following was not a contribution by Niels Bohr?Electrons are in orbits. There is a relationship between the outer s
2 answers:
Answer: The charge of an electron
Explanation:
The charge on electrons was determined by the Robert Millikan and Harvy Fletcher from their experiment named Oil drop experiment.
The charge on the electrons is
Whereas Neil Bohr in his structure of atom explained that:
- Electrons are moving around the nucleus in a discrete circular paths known as orbits or shells.
- These orbitals or shells have fixed value of energy.
- Emission spectra of hydrogen.
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Answer:
Explanation:
Data Given
Formula of hydrazine = N₂H₄
Lewis structure of hydrazine (N₂H₄) =?
Solution:
- Hydrazine (N₂H₄) contains 2 Nitrogen atoms and 4 Hydrogen atoms
- Nitrogen atom have 5 valence electrons
- Hydrogen have 1 valance electron
- So it have 14 total number of valance electrons
N₂ H₄ = 2 (5) + 4(1) = 14 no. o electrons
- it is a stable compound and obey octet rule for nitrogen and duplet rule for hydrogen by sharing of electrons.
To draw the Lewis Structure
- Put the 2 nitrogen in center and draw the Hydrogen on the outside
- Put the 2 hydrogen on out side of each of the nitrogen
- Then draw the 2, 2 valence electrons between atoms that form chemical bond
- So we will draw total 14 electrons in the structure
- then we count electrons around each atom of nitrogen and hydrogen that it have 8 and 2 electrons to complete its octet and duplet respectively
Lewis Structure of N₂ H₄ in attachment
