How many electrons are located in the outermost orbit in the Bohr model of a boron atom? A. 1
B. 2
C. 3
D. 4

the answer is C. 3

Explanation: look at a diagram it would help as well.

the solar system used to have much dust particles option no d

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.