# 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

Definition of atomic number and mass number.
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## Atomic Number

by Jordan Cargill //basic
Definition of atomic number and mass number.
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## 원자번호와 질량수

원자번호와 질량수의 정의
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## Chapter 14 Atomic Number

Definition of atomic number and mass number.
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## Atomic Number

Definition of atomic number and mass number.
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This indicates how strong in your memory this concept is
0

## Atomic Number

Definition of atomic number and mass number.
MEMORY METER
This indicates how strong in your memory this concept is
0

## Atomic Number

Definition of atomic number and mass number.
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This indicates how strong in your memory this concept is
0

## Atomic Number.

Definition of atomic number and mass number.
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• PLIX

## Writing the Periodic Table

Atomic Number Interactive
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• Video

## Atomic number and Mass number

Explains the Atomic number and Mass number of an atom.
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• Worksheet

## Atomic Mass and Atomic Number Worksheet

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

## Atomic Number

by Ellaine Chou //basic
These flashcards are here to help you better understand middle school physical science.
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