Atomic Structure

Flashcard
•
Chemistry
•
9th - 11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the three main subatomic particles in an atom?
Back
Protons, Neutrons, Electrons
2.
FLASHCARD QUESTION
Front
What is the charge of protons?
Back
Positive
3.
FLASHCARD QUESTION
Front
What is the charge of neutrons?
Back
Neutral
4.
FLASHCARD QUESTION
Front
What is the charge of electrons?
Back
Negative
5.
FLASHCARD QUESTION
Front
What determines the atomic number of an element?
Back
The number of protons in the nucleus.
6.
FLASHCARD QUESTION
Front
What is the mass of a neutron compared to a proton?
Back
Approximately equal; both have a mass of about 1 atomic mass unit (amu).
7.
FLASHCARD QUESTION
Front
What is the role of electrons in an atom?
Back
Electrons are involved in chemical bonding and determine the atom's reactivity.
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