Chemistry Revision Year 9
Flashcard
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Kirrily O'Hara
FREE Resource
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33 questions
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1.
FLASHCARD QUESTION
Front
When an atom loses an electron, it becomes a: positive ion, negative ion, neutral ion, neutral atom
Back
positive ion
2.
FLASHCARD QUESTION
Front
An electron has what kind of charge?
Back
negative
3.
FLASHCARD QUESTION
Front
Where are valence electrons found?
Back
In the outermost energy levels of an atom.
4.
FLASHCARD QUESTION
Front
Cations
Back
Lose electrons, has an overall positive charge
5.
FLASHCARD QUESTION
Front
Anions
Back
Gain electrons, has an overall negative charge
6.
FLASHCARD QUESTION
Front
How does calcium become a calcium ion?
Back
it loses 2 electrons
7.
FLASHCARD QUESTION
Front
Atoms can share electrons.
Back
True
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