
Dalton's Atomic Theory
Presentation
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Medium
Standards-aligned
Shane Eakle
Used 160+ times
FREE Resource
5 Slides • 6 Questions
1
Dalton's Atomic Theory
In 1808, this English schoolteacher proposed his own atomic theory that became widely accepted
Dalton’s Atomic Theory:
–All elements are made of tiny atoms.
–Atoms cannot be subdivided.
–Atoms of the same element are exactly alike.
–Atoms of different elements can join to form molecules.
2
Democritus (460-370 B.C.)
Was a Greek philosopher who proposed that world is made up of empty space and tiny particles called atoms.
He thought that atoms are the smallest particles of matter and that different types of atoms exist for every type of matter.
3
Multiple Choice
Democritius thought that ____ are the smallest particles of matter.
Electrons
Protons
Atoms
Neutrons
4
Multiple Select
Which of the following are parts of Dalton's atomic Theory?
All elements are made of tiny atoms.
Atoms cannot be subdivided.
Atoms of the same element are exactly alike
Atoms of different elements can join to form molecules.
Atoms are divisible
5
Proust (leading up to Dalton)
1799 Proust observed the composition of water was always 11 percent by mass hydrogen and 89 percent by mass oxygen.
He then studied other compounds and noticed that reguardless of the sample this was always true.
6
Multiple Choice
What compound did Proust use to come up with the Law of Definite Proportions?
Salt
Water
Air
Gold
7
8
Multiple Choice
Which Part of the Scientific Method is supported many experiments and scientists?
Hypothesis
Theory
Law
Experiment
9
10
Multiple Choice
What is the formula for atmospheric Nitrogen?
NO2
N2
NO3
N
11
Multiple Choice
What compound did Proust use to come up with the Law of Definite Proportions?
Salt
Water
Air
Gold
Dalton's Atomic Theory
In 1808, this English schoolteacher proposed his own atomic theory that became widely accepted
Dalton’s Atomic Theory:
–All elements are made of tiny atoms.
–Atoms cannot be subdivided.
–Atoms of the same element are exactly alike.
–Atoms of different elements can join to form molecules.
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