Ions & Isotopes
Flashcard
•
Science
•
8th - 10th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an ion?
Back
An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.
2.
FLASHCARD QUESTION
Front
What is an isotope?
Back
Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons, resulting in different mass numbers.
3.
FLASHCARD QUESTION
Front
How do you determine the number of electrons in an ion?
Back
To find the number of electrons in an ion, subtract the charge of the ion from the atomic number. For example, a -2 charge means 2 more electrons than protons.
4.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.
5.
FLASHCARD QUESTION
Front
What is the mass number of an atom?
Back
The mass number is the total number of protons and neutrons in an atom's nucleus.
6.
FLASHCARD QUESTION
Front
What is the difference between a positive ion and a negative ion?
Back
A positive ion (cation) has lost electrons, resulting in a positive charge, while a negative ion (anion) has gained electrons, resulting in a negative charge.
7.
FLASHCARD QUESTION
Front
What do isotopes of the same element have in common?
Back
Isotopes of the same element have the same number of protons (atomic number) but different numbers of neutrons.
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