–Each element consists of tiny invisible particles called atoms –All atoms of the same element are identical in size, mass, and properties ( not quite ) but atoms of different elements are different in size, mass, and properties. –Atoms cannot be subdivided, created, nor destroyed (not quite) . –Atoms of different elements combine in simple, whole-number ratios to form compounds. –In chemical reactions, atoms are combine, separated, or rearranged.

Quantum Mechanical Atomic Theory

1.All matter is composed of atoms. 2.Atoms of one element differ in properties from atoms of another element. 3.Atoms are divisible into smaller particles called subatomic particles. 4.A given element is made up of atoms with different masses. (Isotopes) 5.Chemical reaction involves only the combination, separation, or rearrangement of atoms. 6.Compounds are formed by the combination of atoms in small whole number ratios.

Quantum Mechanical Atomic Theory

"Atomic Fingerprints" Used to identify elements in samples, stars, and atmospheres of planets.

gas discharge tube amalgamation

Which laws did John Dalton base his atomic theory on? (Multi-Select)

Law of definite proportions (constant composition)

Dalton's Law of Quantum Mechanics

The beam of electrons was deflected away from the negative charge plate proved that

electrons are negatively charged

electrons are a fundamental particle (found in all matter)

electrons are positively charged

The beam of electrons caused the paddle wheel to spin

electrons are a fundamental particle (found in all matter)

electrons are positively charged

electrons are negatively charged

The beam of electrons (cathode rays) where produced no matter what metal the cathode was made out of.

electrons are a fundamental particle (found in all matter)

electrons are positively charged

electrons are negatively charged

What did they expect to happen to the alpha particles in the gold foil experiment?

all of the alpha particles to pass straight through the gold foil

half to be deflected and half to pass straight through the gold foil

all of the alpha particles to bounce back from the gold foil

most to pass straight through, some deflected at a small angle, and a few to bounce almost straight back

What actually happened to the alpha particles in the gold foil experiment?

most to pass straight through, some deflected at a small angle, and a few to bounce almost straight back

half to be deflected and half to pass straight through the gold foil

all of the alpha particles to pass straight through the gold foil

all of the alpha particles to bounce back from the gold foil

In the gold foil experiment, some of the alpha particles were deflected at a small angle proving

that the nucleus is positively charged

the existence of a small volume with a large mass inside the atom

that the atom is mostly empty space

the existence of a large volume with a small mass in the center of the atom

that the nucleus is negatively charged

In the gold foil experiment, most of the alpha particles passed straight through proving

that the atom is mostly empty space

the existence of a small volume with a large mass inside the atom

that the nucleus is positively charged

the existence of a large volume with a small mass in the center of the atom

that the nucleus is negatively charged

In the gold foil experiment, a few of the alpha particles bounced almost straight back proving

the existence of a small volume with a large mass inside the atom

that the atom is mostly empty space

that the nucleus is positively charged

the existence of a large volume with a small mass in the center of the atom

that the nucleus is negatively charged

What causes Brownian motion of pollen grains in water?

the collision of water molecules with the grains of pollen

diffusion of the water molecules

C05 Atomic Theory Homework

Authored by Bill Habiger

Chemistry

10th Grade - University

Used 23+ times

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

Content View

Student View

59 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Thought all matter was made up of the elements: earth, air, water, and fire.

Democritus

Ernest Rutherford

John Dalton

Aristotle

J.J. Thomson

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Gold Foil Experiment

Neils Bohr

Democritus

John Dalton

Ernest Rutherford

JJ Thomson

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cathode Ray Tube Experiment

Neils Bohr

Democritus

John Dalton

Ernest Rutherford

JJ Thomson

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

First person to suggest the idea of the atom.

Democritus

Ernest Rutherford

John Dalton

Aristotle

J.J. Thomson

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

His work discovered atoms have a nucleus, positive protons, and electrons that travel around nucleus

Neils Bohr

Democritus

John Dalton

Ernest Rutherford

JJ Thomson

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This contains most of the mass of an atom

Electron Cloud

Nucleus

Electron

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This particle is found in the nucleus and has a positive charge

Electron

Proton

Neutron

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

Apple

Others

Already have an account?

Similar Resources on Wayground

63 questions

Chemistry Chp. 5 Practice Test

Quiz

•

11th Grade

54 questions

HC ions periodicity electrons

Quiz

•

11th Grade

64 questions

Honors Chemistry Semester One Exam Review

Quiz

•

10th - 12th Grade

54 questions

About to Crush This Chemistry Regents!

Quiz

•

9th - 12th Grade

56 questions

PH2

Quiz

•

10th Grade

60 questions

Physical Science - Final

Quiz

•

9th - 12th Grade

63 questions

Chemistry Lab Equipment

Quiz

•

10th - 11th Grade

63 questions

Classification of the Elements

Quiz

•

9th - 10th Grade

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

10 questions

Probability Practice

Quiz

•

4th Grade

15 questions

Probability on Number LIne

Quiz

•

4th Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

6 questions

Appropriate Chromebook Usage

Lesson

•

7th Grade

10 questions

Greek Bases tele and phon

Quiz

•

6th - 8th Grade

Discover more resources for Chemistry

20 questions

Predicting Products

Quiz

•

9th - 12th Grade

10 questions

Exploring Types of Chemical Reactions

Interactive video

•

6th - 10th Grade

19 questions

Stoichiometry, % yield, Limiting Reactants

Quiz

•

10th Grade

20 questions

Types of Chemical Reactions

Quiz

•

9th - 12th Grade

10 questions

Exploring Ionic and Covalent Bonding Concepts

Interactive video

•

6th - 10th Grade

7 questions

GCSE Chemistry - Balancing Chemical Equations #4

Interactive video

•

9th - 10th Grade

24 questions

Unit 2 (Part 1) Bonding Review

Quiz

•

12th Grade

12 questions

Percent Yield

Quiz

•

10th Grade

C05 Atomic Theory Homework

Thought all matter was made up of the elements: earth, air, water, and fire.

Gold Foil Experiment

Cathode Ray Tube Experiment

First person to suggest the idea of the atom.

His work discovered atoms have a nucleus, positive protons, and electrons that travel around nucleus

This contains most of the mass of an atom

This particle is found in the nucleus and has a positive charge

This particle is found in the nucleus and has no charge

This is a negatively charged particle found outside the nucleus

All matter is made of what?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry