What are the names of the electron shells numbered 1, 2, 3, and 4?
Ions, cations and anions

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Science, Chemistry
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
K, L, M, N
2.
FLASHCARD QUESTION
Front
What is the electron configuration of Boron (B) with 5 electrons?
Back
2, 3
3.
FLASHCARD QUESTION
Front
Why do electrons repel each other in their shells?
Back
Because their negative charges repel.
4.
FLASHCARD QUESTION
Front
What is the notation for a Beryllium atom that has lost 2 electrons?
Back
Be²⁺
5.
FLASHCARD QUESTION
Front
What is the electron configuration of Nitrogen (N)?
Back
2, 5
6.
FLASHCARD QUESTION
Front
What is an ion?
Back
An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.
7.
FLASHCARD QUESTION
Front
What is the difference between cations and anions?
Back
Cations are positively charged ions (lost electrons), while anions are negatively charged ions (gained electrons).
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