Structure of the atom

Flashcard
•
Chemistry
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the basic structure of an atom?
Back
An atom consists of a nucleus containing protons and neutrons, surrounded by electrons in orbitals.
2.
FLASHCARD QUESTION
Front
What are protons?
Back
Protons are positively charged particles found in the nucleus of an atom.
3.
FLASHCARD QUESTION
Front
What are neutrons?
Back
Neutrons are neutral particles found in the nucleus of an atom, contributing to its mass.
4.
FLASHCARD QUESTION
Front
What are electrons?
Back
Electrons are negatively charged particles that orbit the nucleus of an atom.
5.
FLASHCARD QUESTION
Front
What is atomic mass?
Back
Atomic mass is the weighted average mass of an atom's isotopes, measured in atomic mass units (amu).
6.
FLASHCARD QUESTION
Front
How do you calculate the number of neutrons in an atom?
Back
Number of neutrons = Atomic mass - Number of protons.
7.
FLASHCARD QUESTION
Front
What is an ion?
Back
An ion is an atom that has gained or lost one or more electrons, resulting in a net charge.
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