Atoms, Molecules, Compounds

Flashcard
•
Science
•
8th Grade
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus made of protons and neutrons, surrounded by electrons.
Tags
NGSS.MS-PS1-1
2.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A molecule is a group of two or more atoms bonded together. Molecules can consist of the same or different elements.
Tags
NGSS.MS-PS1-1
3.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more different elements chemically bond together in fixed proportions.
Tags
NGSS.MS-PS1-1
4.
FLASHCARD QUESTION
Front
What are metalloids?
Back
Metalloids are elements that have properties of both metals and nonmetals. Examples include boron and antimony.
5.
FLASHCARD QUESTION
Front
Is Sodium (Na) an element or a compound?
Back
Sodium (Na) is an element.
6.
FLASHCARD QUESTION
Front
What is the difference between a molecule and a compound?
Back
All compounds are molecules, but not all molecules are compounds. A molecule can consist of the same type of atoms, while a compound consists of different types of atoms.
Tags
NGSS.MS-PS1-1
7.
FLASHCARD QUESTION
Front
What is the chemical symbol for Hydrogen?
Back
The chemical symbol for Hydrogen is H.
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