Isotopes and Average Atomic Mass

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Chemistry
•
9th - 12th Grade
•
Hard
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1.
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 atomic masses.
2.
FLASHCARD QUESTION
Front
What is the average atomic mass?
Back
The average atomic mass is the weighted average of the masses of an element's isotopes, taking into account their relative abundances.
3.
FLASHCARD QUESTION
Front
What subatomic particle is electrically neutral?
Back
Neutron.
4.
FLASHCARD QUESTION
Front
How many protons does sulfur have?
Back
Sulfur has 16 protons.
5.
FLASHCARD QUESTION
Front
How do you calculate the average atomic mass of an element with multiple isotopes?
Back
Multiply the mass of each isotope by its relative abundance (as a decimal), then sum these values.
6.
FLASHCARD QUESTION
Front
What is the charge of an atom with 3 protons, 4 neutrons, and 2 electrons?
Back
The atom has a +1 charge.
7.
FLASHCARD QUESTION
Front
What is the significance of the atomic number?
Back
The atomic number is the number of protons in the nucleus of an atom and determines the element's identity.
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