d. Nat, Al For each of the following pairs, predict which atom has the higher fi
ID: 562294 • Letter: D
Question
d. Nat, Al For each of the following pairs, predict which atom has the higher first ionization energy a. Mg, Na 16. b. S, O c. CL, I d. Ca, Ba 17. For each of the following elements, state whether it is more likely to gain or lose electrons to form a stable octet. State how many electrons each will lose or gain. a. K b. Br c. Ar d. Al 18. Predict which atom has the higher electronegativity in the following pairs. a. Mg, Na b. Na, Al d. Se, Br 19. What does it mean to have 8 electrons in the outer energy level? 20. What element is the most inert or nonreactive on the periodic table?Explanation / Answer
16.The periodic table left to right ionisation potential is increases.
C.Cl, I
17. a
K ------------------> K^+ e^- (K by lose of one electron to get argon configuration)
b.
Br + e^- ------------------> Br^- ( Br gain one electron to get krypton configuration)
c.
Ar is stabel . it contains octet configuration in it's valency shell.(3s^2 3p^6)
d.
Al ------------------------> Al^3+ + 3e^- ( Al by lose of three electrons to get neon configuration)
18.
c. S,O
19. ns^2 np^6 is octet configuration. The octet configuration elements are more stable . They are not participate in chemical reaction .So they are chemically inert.
20.
He,Ne,Ar,Kr,Xe are more stable. They are contains octet configuration in it's valency shell. They are not participate in chemical reaction .So they are chemically inert.
He is chemical inert or non reactive due to more ionisation energy.
He >>>>>answer
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