Consider the following list of electron configurations: ( 1 ) 1s 2 2s 2 3s 2 ( 4

Question

Consider the following list of electron configurations: (1) 1s2 2s2 3s2 (4) 1s2 2s2 2p6 3s23p6 4s2 (2) 1s2 2s2 2p6 (5) 1s2 2s2 2p6 3s23p6 4s2 3d6 (3) 1s2 2s2 2p63s1

Reference: Ref 30-3
Which electronic configuration is characteristic of noblegases?

a. 5
b. 1
c. 4
d. 2
e. 3 Consider the following list of electron configurations: (1) 1s2 2s2 3s2 (4) 1s2 2s2 2p6 3s23p6 4s2 (2) 1s2 2s2 2p6 (5) 1s2 2s2 2p6 3s23p6 4s2 3d6 (3) 1s2 2s2 2p63s1 Reference: Ref 30-3 Which electronic configuration is characteristic of noblegases? 5 1 4 2 3 (1) 1s2 2s2 3s2 (4) 1s2 2s2 2p6 3s23p6 4s2

Explanation / Answer

1s2 2s2 2p6 is nocle gaselectronic configuration So answer (d)

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