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enot [183]
3 years ago
11

Elements in the same period have the same ___________?​

Chemistry
1 answer:
tiny-mole [99]3 years ago
7 0

Answer:

number of energy levels

Explanation:

for example hydrogen and helium are in period 1 and they have 1 energy level

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1 year ago
Can boron atoms, B form dative bonds with nitrogen atoms, N in the compound ammonia?​
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"The boron-nitrogen interaction in the studied molecules shows some similarities with the N→B bond in the H3N-BH3 molecule, formally understood as covalent-dative. ... The results show that all the studied BN bonds are triple, since three two-center orbitals have been obtained."

"Formation of a dative bond or coordinate bond between ammonia and boron trifluoride. When the nitrogen donates a pair of electrons to share with the boron, the boron gains an octet. ... In addition, a pair of non-bonding electrons becomes bonding; they are delocalized over two atoms and become lower in energy."

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3 years ago
Why does the sky appear orang or red at sunset and sunrise?
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3 years ago
A solution of chloroform, CHCl3, and acetone, (CH3)2CO, exhibits a negative deviation from Raoult's law. This result implies tha
Gnoma [55]

The given question is incomplete. The complete question is as follows.

A solution of chloroform (CHCl_{3}) and acetone ((CH_{3})_{2}CO) exhibits a negative deviation from Raoult's law. This result implies that:

chloroform-chloroform interactions are stronger than chloroform-acetone interactions.

chloroform-chloroform interactions are weaker than chloroform-acetone interactions.

acetone-acetone interactions are stronger than chloroform-acetone interactions.

acetone-acetone interactions are weaker than chloroform-acetone interactions

chloroform-chloroform interactions are weaker than chloroform-acetone interactions AND acetone-acetone interactions are weaker than chloroform-acetone interactions.

Explanation:

It is known that when the forces between the particles of the mixture are stronger than the forces between the particles in the pure liquids then negative deviations from Raoult's law are observed.

Hence, when a solution of chloroform (CHCl_{3}) and Acetone ((CH_{3})_{2}CO) will exhibit a negative deviation from Roult's law.

Then, chloroform-chloroform interactions should be weaker than chloroform-acetone interactions and acetone-acetone interactions must be weaker than Chloroform-Acetone interactions.

thus, we can conclude that for the given situation  chloroform-chloroform interactions are weaker than chloroform-acetone interactions AND acetone-acetone interactions are weaker than chloroform-acetone interactions.

7 0
3 years ago
No explanation needed just answer pls. quick.
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Answer: The answer is C in ionic bonds electrons are transferred and in covalent bonds they are shared
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