Unit 5: Periodic Table - 7th Grade 2024
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Science
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7th Grade
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Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the atomic symbol represent in the periodic table?
Back
The atomic symbol represents the unique identifier for an element, typically consisting of one or two letters.
2.
FLASHCARD QUESTION
Front
What is a mixture in chemistry?
Back
A mixture is a combination of two or more substances that retain their individual properties and can be separated by physical means.
3.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more elements chemically bond together in a fixed ratio.
Tags
NGSS.MS-PS1-1
4.
FLASHCARD QUESTION
Front
How can you identify a compound from a chemical formula?
Back
A compound can be identified by its chemical formula, which shows the elements present and the ratio of atoms, such as H2O for water.
Tags
NGSS.MS-PS1-1
5.
FLASHCARD QUESTION
Front
What is the difference between an element and a compound?
Back
An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically combined.
6.
FLASHCARD QUESTION
Front
What is the significance of the periodic table in chemistry?
Back
The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
7.
FLASHCARD QUESTION
Front
What does the term 'elemental molecule' refer to?
Back
An elemental molecule is a molecule that consists of two or more atoms of the same element bonded together, such as O2 or N2.
Tags
NGSS.MS-PS1-1
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