Question

[16] Which of the following would have to gain three electrons in order to achieve a noble gas electron configuration? Si Mg AI CIP AP Β) ΑΙ C) Si D) CI

Answer 1

18 Group eleweute howe stable configuvatim. These elements are called Noble gases. These have octet configuraticu (nsumpo) except He. Octer configuraticu s possessing of ser in outer shell is called outer configuration. z He Ne, Ar, kv, xe, Rn. Noble goser p (2=15) - Atami ng (2) is: 15. It's electronic configuration - 1525 206353p3 outer Element heaver to 'P' havius Stable configuration in Ar- Isaszp6 353p6. AY In order like to Ar get stable pussphorus electronic configu- gains 3electius, ration 3 - - 3e- - P + phosphide phosphicle Im Ich has 8 electrous coctet) in outer shell,

de to get noble phosphory sains 3 é sas configurations, B Al 12-13). electronic configuration in (Nej 383p'. Al loses 3 electours to get Noble gas Configuration like we Al – 36 → Alt? © si (2=14) electronic configurationis [ne] 353p. It needs to lose Gelectrons to get noble gas configurations like Neon, Si - 46 → si +4,

a 12=17) electronic configuraticu in. [ne] 353p. to be stable like Argm (2=181, Chlorine needs to sain lelectron. at eta option ② is correct