
Valence Electrons and Ions
Flashcard
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What are valence electrons?
Back
Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.
2.
FLASHCARD QUESTION
Front
How many valence electrons does Calcium (Ca) have?
Back
Calcium has 2 valence electrons.
3.
FLASHCARD QUESTION
Front
What is a cation?
Back
A cation is a positively charged ion that forms when an atom loses one or more electrons.
4.
FLASHCARD QUESTION
Front
What noble gas has the same electron configuration as a Calcium cation (Ca²⁺)?
Back
Argon (Ar) has the same electron configuration as a Calcium cation.
5.
FLASHCARD QUESTION
Front
What happens to an atom when it gains electrons?
Back
It becomes negatively charged, forming an anion.
6.
FLASHCARD QUESTION
Front
What is the significance of the period number in the periodic table?
Back
The period number indicates the number of electron shells an element has.
7.
FLASHCARD QUESTION
Front
How many valence electrons does Helium (He) have?
Back
Helium has 2 valence electrons.
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