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Chemistry Alevel question

9. (a) Consider the elements labelled A-G. These are not chemical symbols.
A
B
C
1s2 2s2 2p1
1s2 2s2 2p3
1s2 2s2 2p6
D
E
F
G
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p1
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p6 4s1
(i) Give the letter (A-G) of the element with the largest first ionisation energy.
Give two reasons for your answer

Help me please
The letters correspond with the electron coinfiguration beneath (in order
Reply 2
Original post by MadisonBailey06
9. (a) Consider the elements labelled A-G. These are not chemical symbols.
A
B
C
1s2 2s2 2p1
1s2 2s2 2p3
1s2 2s2 2p6
D
E
F
G
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p1
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p6 4s1
(i) Give the letter (A-G) of the element with the largest first ionisation energy.
Give two reasons for your answer

Help me please

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