Chem in the Earth System IS3T2: Atomic Structure and Valence

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•
Chemistry
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What are metals?
Back
Metals are elements that are typically shiny, good conductors of heat and electricity, and malleable. They are found on the left side and in the center of the periodic table.
2.
FLASHCARD QUESTION
Front
What are noble gases?
Back
Noble gases are a group of inert (nonreactive) elements located in Group 18 of the periodic table. They include helium, neon, argon, krypton, xenon, and radon.
3.
FLASHCARD QUESTION
Front
How many electrons does potassium (K) have?
Back
Potassium (K) has 19 electrons.
4.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest particle of an element that retains the properties of that element. It consists of protons, neutrons, and electrons.
5.
FLASHCARD QUESTION
Front
What determines the identity of an element?
Back
The identity of an element is determined by the number of protons in its nucleus.
6.
FLASHCARD QUESTION
Front
What are nonmetals?
Back
Nonmetals are elements that are typically poor conductors of heat and electricity, and they can be gases, liquids, or brittle solids at room temperature.
7.
FLASHCARD QUESTION
Front
What are metalloids?
Back
Metalloids are elements that have properties of both metals and nonmetals. They are found along the zig-zag line on the periodic table.
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