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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.

## Atomic Number

by CK-12 //at grade
Definition of atomic number and mass number.
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14

## 원자번호와 질량수

by Whakuk Lee //at grade
원자번호와 질량수의 정의
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## Chapter 14 Atomic Number

by Jannine Tuttle //at grade
Definition of atomic number and mass number.
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## Atomic Number

by Crystal Yan //at grade
Definition of atomic number and mass number.
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## Atomic Number

by Rheannin M.Becke //at grade
Definition of atomic number and mass number.
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## Atomic Number

by Rheannin Becke //at grade
Definition of atomic number and mass number.
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## Atomic Number.

by Megan James //at grade
Definition of atomic number and mass number.
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• PLIX

## Writing the Periodic Table

by CK-12 //at grade
Atomic Number Interactive
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• Video

## Atomic number and Mass number

by Drishan Sarkar //at grade
Explains the Atomic number and Mass number of an atom.
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## Atomic Number Quiz - MS PS

by CK-12 //at grade
Reviews definitions and examples of atomic number and mass number.
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• 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.
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