both my answers were in correct pls help!

Part C Identify the element X in the following ion X an anion with 18 electrons. Express your answer as an element. ? xa a b ab 2 1 11 C1- A chemical reaction does not occur for this question. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Rather than specifying a symbol of an ion, simply identify the element symbol for that Part D Which noble gas has the same electron configuration? r O Ne Kr O He Submit Previous Almswers Request Answer X Incorrect; Try Again; 5 attempts remaining Noble gases have completely filled orbitals, with eight valence electrons i helium, which has 1s2 valence electrons. The X-ion has 18 electrons w 1822s22p63823p This electron configuration has completely filled orbita noble gas. Use the periodic table to identify the noble gas that has the elec