Atoms Ions Isotopes

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Chemistry
•
9th - 12th Grade
•
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 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 many protons does an atom of titanium have?
Back
22 protons.
5.
FLASHCARD QUESTION
Front
What does the atomic number represent?
Back
The atomic number represents the number of protons in the nucleus of an atom.
6.
FLASHCARD QUESTION
Front
If an atom has a charge of -2, how does this affect the number of electrons?
Back
It means the atom has 2 more electrons than protons.
7.
FLASHCARD QUESTION
Front
What happens when neutrons are added or removed from an atom?
Back
It changes the atom into an isotope of the same element.
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