Atoms Ions Isotopes
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest unit of matter that retains the properties of an element, consisting of protons, neutrons, and electrons.
2.
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.
3.
FLASHCARD QUESTION
Front
What is an isotope?
Back
An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons.
4.
FLASHCARD QUESTION
Front
How do you determine the charge of an ion?
Back
The charge of an ion is determined by the difference between the number of protons (positive charge) and electrons (negative charge).
5.
FLASHCARD QUESTION
Front
What happens to an atom when it loses an electron?
Back
When an atom loses an electron, it becomes a positively charged ion (cation).
6.
FLASHCARD QUESTION
Front
What happens to an atom when it gains an electron?
Back
When an atom gains an electron, it becomes a negatively charged ion (anion).
7.
FLASHCARD QUESTION
Front
What is the charge of a neutral atom?
Back
A neutral atom has no charge, meaning the number of protons equals the number of electrons.
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