Which is a property of acids in aqueous solutions?
They feel soapy.
They taste bitter.
They increase the concentration of H+ ions.
They decrease the concentration of H+ ions.
O

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.