Atoms & Periodic Table
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is an element?
Back
An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include gold, oxygen, and hydrogen.
2.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more elements are chemically bonded together. Examples include water (H2O) and carbon dioxide (CO2).
3.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A mixture is a combination of two or more substances that are not chemically bonded. Examples include air and salad.
4.
FLASHCARD QUESTION
Front
What is a mole in chemistry?
Back
A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 6.022 x 10^23 particles (atoms, molecules, etc.).
5.
FLASHCARD QUESTION
Front
Where is most of the mass in an atom concentrated?
Back
Most of the mass in an atom is concentrated in the nucleus, which contains protons and neutrons.
6.
FLASHCARD QUESTION
Front
What charge do Group 2 elements have?
Back
Group 2 elements have a charge of +2 when they form ions.
7.
FLASHCARD QUESTION
Front
Who was the first person to propose atomic theory?
Back
Democritus was the first person to propose the idea of atomic theory, suggesting that matter is made up of small, indivisible particles called atoms.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
Already have an account?
Similar Resources on Wayground
16 questions
Endothermic and Exothermic reactions
Flashcard
•
7th Grade
10 questions
EARTHQUAKES
Flashcard
•
8th Grade
10 questions
Plant Stimuli and Responses
Flashcard
•
7th Grade
10 questions
unit 7 lớp 7
Flashcard
•
7th Grade
11 questions
Basic information of Computers
Flashcard
•
7th Grade
12 questions
Blender - Modifiers in 3D Modeling
Flashcard
•
7th Grade
9 questions
Inequalities
Flashcard
•
9th Grade
15 questions
Understanding a Paycheck and Pay Stub
Flashcard
•
8th Grade
Popular Resources on Wayground
8 questions
2 Step Word Problems
Quiz
•
KG - University
20 questions
Comparing Fractions
Quiz
•
4th Grade
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
10 questions
Latin Bases claus(clois,clos, clud, clus) and ped
Quiz
•
6th - 8th Grade
22 questions
fractions
Quiz
•
3rd Grade
7 questions
The Story of Books
Quiz
•
6th - 8th Grade
Discover more resources for Science
12 questions
Newton's Laws of Motion
Lesson
•
6th - 8th Grade
20 questions
Elements, Compounds and Mixtures
Quiz
•
8th Grade
10 questions
Exploring Earth's Seasons and Their Causes
Interactive video
•
6th - 8th Grade
20 questions
Natural Selection and Adaptations
Quiz
•
6th - 8th Grade
10 questions
Exploring Plate Tectonics and Their Boundaries
Interactive video
•
6th - 10th Grade
18 questions
Carbon Cycle
Quiz
•
8th Grade
11 questions
Rock Cycle
Lesson
•
6th - 8th Grade
15 questions
Plate Tectonics STAAR Review Comprehension Quiz
Quiz
•
8th Grade