babymoose9723 babymoose9723
  • 16-01-2020
  • Chemistry
contestada

Which of the following compounds has an atom with an unfilled valence shell of electrons? And why?A. H3O+B. BF3C. CH3OHD. NaI

Respuesta :

abdulismail72 abdulismail72
  • 17-01-2020

Answer: BF3

Explanation: boron needs 4 electron to obtain octet and Fluorine has just one. For the valence shell to be completely filled it will have to form BF4- with 4 fluorine atom surrounding it.

Answer Link

Otras preguntas

Which sentence uses negative words incorrectly? A. Nothing could make me eat no squid. B. Don't tease the parrot or you'll be sorry! C. They shouldn't be playin
Which pronoun agrees with the antecedent in the sentence? Some of the pond has algae on __________ surface. A. it's B. theirs C. its D. their
who were the two men who arranged the Louisiana territory purchase
Which pronoun correctly completes the sentence? To __________ was the poem dedicated? A. whom B. who
Which term refers to a soldier in the northern, or Union, army during the Civil War? A. Minuteman B. Whig C. Yankee D. Confederate
Choose the simple predicate in the following sentence. The men finished the game in a short time.
Which describes how the pronoun is used in the sentence? Grandmother has given the African masks to Brendan and me. A. predicate nominative B. direct object C.
47 lbs = ______________ kgs (give answer in decimal form)
1. who is the father of atomic theory? 2. who discovered the electron? 3. who expressed particles by wave equations? 4. who researched on radioactivity? 5.
Why was the Kingdom of Axum an important region on the Silk Road?