Free Printable Warm-Up Review: Atomic Theory & Vocabulary

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Warm-Up Review: Atomic Theory & Vocabulary

Total questions: 12

Worksheet time: 13mins

Name

Class

Date

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

Electron Shells

Orbitals

Electron Cloud

Nucleus

He claimed that matter was made of small, hard particles that he called “atomos.”

Democritis

Dalton

Moseley

Einstein

How did each model of the atom help to develop the atomic theory?

Each model provided opinions that were added.

Each model showed different properties of the same structure.

Each model showed new particles that had been discovered.

Each model built upon the other to show new particles or properties of previously discovered particles.

Who came up with the model of an atom pictured?

J.J. Thompson

Ernest Rutherford

Neils Bohr

James Chadwick

What scientist is best known for his "Plum Pudding" model of the atom?

J.J. Thomson

Ernest Rutherford

John Dalton

Democritus

Match the following vocabulary

Atom

The smallest part of a chemical element

Molecule

2 or more atoms held together by a chemical bond

Element

A pure substance represented by a chemical symbol

Compound

2 or more elements combined chemically

Tiny pieces that all matter is made out of (even us!!)

Molecule

Chemical Formula

Substance

Atoms

What is the term for the smallest particle of a chemical element that can exist?

Molecule

Atom

Compound

Ion

An element is

Made up of different types of atoms

Made up of the same type of atoms

none of the above

all of the above

10.

Pure substances made of the same type of atom throughout. They can not be broken down anymore.

Matter

Elements

Molecules

Atoms

11.

formed by two or more different types of elements- chemically bonded.

Mixture

Nucleus

Electron

Compound

12.

Which one is a compound?

NaCl

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Warm-Up Review: Atomic Theory & Vocabulary

Total questions: 12

Worksheet time: 13mins

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