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Atomic Number

Explains the arrangement of the periodic table and the relationship between subatomic particles.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• Read

Atomic Number

by CK-12 //at grade

Definition of atomic number and mass number.

12
• Read

Atomic Number

by Jordan Cargill //basic

Definition of atomic number and mass number.

0
• Read

원자번호와 질량수

by Whakuk Lee //at grade

원자번호와 질량수의 정의

1
• Read

Chapter 14 Atomic Number

by Jannine Tuttle //at grade

Definition of atomic number and mass number.

0
• Read

Atomic Number

by Crystal Yan //at grade

Definition of atomic number and mass number.

0
• PLIX

Writing the Periodic Table

by CK-12 //basic

Atomic Number Interactive

0
• Video

Atomic number and Mass number

by Drishan Sarkar //at grade

Explains the Atomic number and Mass number of an atom.

0
• Downloadable Quiz

Atomic Number Quiz - MS PS

by CK-12 //at grade

Reviews definitions and examples of atomic number and mass number.

1
• Practice
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Atomic Number Practice

by CK-12 //at grade
0
• Post Read

Atomic Number Four Square Concept Matrix

by CK-12 //at grade

Summarize the main idea of a reading, create visual aids, and come up with new questions using a Four Square Concept Matrix.

0
• Worksheet

Atomic Mass and Atomic Number Worksheet

by CK-12 //at grade

A worksheet providing practice in using the periodic table to fill out information on various elements.

0
• Real World Application

What's in a Number?

by CK-12 //basic

Learn how the atomic number of an element is related to its valence electrons and the properties of the element.

1
• Link

Atomic Mass Units

by CK-12 //at grade

Discusses how to measure the mass of an atom.

0
• Flashcards

Atomic Number

by Ellaine Chou //basic

These flashcards are here to help you better understand middle school physical science.

0
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