How many protons neutrons and electrons are in 27 AI 3-

Hey there!

27 tells us the sum of protons and neutrons is 27.

Al tells us we have 13 protons.

3- tells us that there are 3 more electrons than protons.

13 + n = 27

neutrons = 14

13 + 3 = 16 electrons

27Al3- has 13 protons, 14 neutrons, and 16 electrons.

Hope this helps!

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.