What is the structure of an atom?
Structure of Matter 2024

Flashcard
•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An atom consists of a nucleus made of protons and neutrons, surrounded by electrons in energy levels.
2.
FLASHCARD QUESTION
Front
What are energy levels in an atom?
Back
Energy levels are regions around the nucleus where electrons are likely to be found, with each level holding a specific number of electrons.
3.
FLASHCARD QUESTION
Front
How many electrons can the first energy level hold?
Back
The first energy level can hold a maximum of 2 electrons.
4.
FLASHCARD QUESTION
Front
How many electrons can the second energy level hold?
Back
The second energy level can hold a maximum of 8 electrons.
5.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.
6.
FLASHCARD QUESTION
Front
What is the chemical formula for water?
Back
The chemical formula for water is H2O, indicating it has 2 hydrogen atoms and 1 oxygen atom.
7.
FLASHCARD QUESTION
Front
What is a crystal?
Back
A crystal is a solid structure whose atoms or molecules are arranged in a repeating, three-dimensional pattern.
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