AS CHEMISTRY ionisation energy multiple choice question help?
In which one of the following pairs is the first ionisation energy of element Y greater than that of element X? (Total 1 mark)
electronic configuration of: element X element Y
A 1s1 ls2
B 1s2 2s2 ls22s2 2p1
C 1s2 2s22p3 ls22s22p4
D 1s2 2s22p6 ls22s22p6 3s1
The answer is A but idek how?
Help is much appreciated
electronic configuration of: element X element Y
A 1s1 ls2
B 1s2 2s2 ls22s2 2p1
C 1s2 2s22p3 ls22s22p4
D 1s2 2s22p6 ls22s22p6 3s1
The answer is A but idek how?
Help is much appreciated
(edited 6 years ago)
bump
Original post by Sakura-Sama
In which one of the following pairs is the first ionisation energy of element Y greater than that of element X? (Total 1 mark)
electronic configuration of: element X element Y
A 1s1 ls2
B 1s2 2s2 ls22s2 2p1
C 1s2 2s22p3 ls22s22p4
D 1s2 2s22p6 ls22s22p6 3s1
The answer is A but idek how?
Help is much appreciated
electronic configuration of: element X element Y
A 1s1 ls2
B 1s2 2s2 ls22s2 2p1
C 1s2 2s22p3 ls22s22p4
D 1s2 2s22p6 ls22s22p6 3s1
The answer is A but idek how?
Help is much appreciated
Double the nuclear charge acting on electrons in the same shell.
Original post by Sakura-Sama
In which one of the following pairs is the first ionisation energy of element Y greater than that of element X? (Total 1 mark)
electronic configuration of: element X element Y
A 1s1 ls2
B 1s2 2s2 ls22s2 2p1
C 1s2 2s22p3 ls22s22p4
D 1s2 2s22p6 ls22s22p6 3s1
The answer is A but idek how?
Help is much appreciated
electronic configuration of: element X element Y
A 1s1 ls2
B 1s2 2s2 ls22s2 2p1
C 1s2 2s22p3 ls22s22p4
D 1s2 2s22p6 ls22s22p6 3s1
The answer is A but idek how?
Help is much appreciated
Can u share the markscheme
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