Question

(1) Element ABCD and E have atomic numbers 17,19,18 10 and 7 respectively.
1) Predict the elements that will form cations 1) Identify the element that has zero valency, w) Predict the elements that will form anions, v) Write the molecular formula between A and B.​

Answer 1

Answer:

10(Ne) and 18(Ar) has 0 valency