The electron configuration of an element is 1s2 2s2 2p4. How many more electrons does the element need to satisfy the octet rule?
e- Configuration & Periodic Trends

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Chemistry
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10th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
2
2.
FLASHCARD QUESTION
Front
Which element has the smallest atomic radius? Options: Ca, K, Zn, Cl
Back
Cl
3.
FLASHCARD QUESTION
Front
The element that has the greatest electronegativity is: Oxygen, Chlorine, Sodium, Flourine
Back
Flourine
4.
FLASHCARD QUESTION
Front
Electron configuration: 1s22s22p63s23p6
Options: Cl-, K+, Al3+
Back
Cl- and K+
5.
FLASHCARD QUESTION
Front
Which of these sequences do not show the correct trend in ionization energy? Options: Al<Si< P<Cl, Be<Mg<Ca<Sr, I<Br<Cl<F, Na<Mg<Al<Si
Back
Be<Mg<Ca<Sr
6.
FLASHCARD QUESTION
Front
Which element has the highest electronegativity? Options: Na, Mg, Si, Cl
Back
Cl
7.
FLASHCARD QUESTION
Front
What is the electron configuration for Arsenic?
Back
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3
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