The electronic structure of the atoms of live elements, A,B, C,D and E, are shown below: A 2,8,2 B 2,8,6 C 2,1 D 2,8 E 2,6

(a) which one of these elements is in group II of the periodic table? Give a reason for your answer.

(b) which two of these elements are in the same group in the periodic table?

(c) which one of these elements has the highest proton number?

(d) Element E is oxygen. An isotope of oxygen has eight neutrons.
(i) what do you understand by the term isotope?
(ii) state the nucleon number of this isotope of oxygen.

(e) Element C is Lithium is a metal. Describe three differences between the physical properties of lithium and oxygen 2 of 2

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.