What is the periodic table?
Unit 2 Reivew: Periodic Table and Chemical Reactions

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Science
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A tabular arrangement of chemical elements, organized by increasing atomic number, where elements with similar properties are grouped together.
2.
FLASHCARD QUESTION
Front
What are metals?
Back
Elements that are typically solid at room temperature (except mercury), good conductors of heat and electricity, and have a shiny appearance.
3.
FLASHCARD QUESTION
Front
What is malleability?
Back
The ability of a material, especially metals, to be deformed or shaped under compressive stress without breaking.
4.
FLASHCARD QUESTION
Front
What is electrical conductivity?
Back
The ability of a material to conduct an electric current, which is a characteristic property of metals.
5.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A process where substances combine or break apart to form new substances, often indicated by changes in temperature, color, or the production of gas.
6.
FLASHCARD QUESTION
Front
What is a metalloid?
Back
Elements that have properties of both metals and nonmetals, such as silicon and boron.
7.
FLASHCARD QUESTION
Front
What is the significance of the atomic number?
Back
The atomic number represents the number of protons in an atom's nucleus and determines the element's identity.
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