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WorksheetsAtomic theories (Early to Thomson)
Total questions: 20
Worksheet time: 10mins
It is a law that tells us that matter cannot be created nor destroyed.
Law of conservation of mass
Law of Constant Composition
Law of Multiple Proportion
Atomic Theory
He was the first one to introduce the idea that matter is made up of atoms.
Democritus
Aristotle
John Dalton
Joseph John Thomson
Atoms came from the word (a)
What is the name of Dalton's model of the atom?
Plum Pudding Model
Billiard Ball Model
Nuclear Model
Planetary Model
He believed that matter was continuous.
John Dalton
Joseph John Thomson
Aristotle
Democritus
It is a law that tells us that in a given compound, the relative numbers and kinds of atoms are constant.
Law of conservation of mass
Law of Multiple Proportion
Law of Definite Proportion
Atomic Theory
According to Aristotle, the combination of air and water results to _______
hot
dry
wet
cold
According to Aristotle, the combination of fire and earth results to _______
hot
dry
wet
cold
According to Dalton's atomic theory, atoms can easily be converted to other types of atoms.
TRUE
FALSE
It is a system that can freely exchange matter and energy with its surrounding.
(a)
What instrument was used to discover the electrons?
Gas Discharge Tube
Crooke's Tube
Cathode Ray Tube
All of the above
What is the name of Thomson's Model of the Atom?
Plum Pudding Model
Nuclear Model
Electron Cloud Model
Billiard Ball Model
According to Thomson's Model of the atom, where are the protons located?
Embedded in the atom like raisins
Inside the nucleus
Scattered in the sphere
Outside of the atom
What is the proof that electrons are negatively charged?
They cast sharp shadows
They bend towards the negatively-charged plate
They bend towards the positively-charged plate
The paddle wheel rotated
What is the proof that electrons consists of particles and have energy to do work?
They cast sharp shadows
They bend towards the negatively-charged plate
They bend towards the positively-charged plate
The paddle wheel rotated
According to John Dalton, "All atoms are identical to one another even if they are different elements"
True
False
According to John Dalton, " Compounds result from combinations of atoms in specific ratios."
True
False
According to John Dalton, "elements can easily be converted to another element in a simple chemical reaction"
True
False
According to John Dalton, "elements are made up of atoms that can neither be created nor destroyed"
True
False
It is a system where energy and matter is not freely exchanged by its surroundings.
Close system
Open System
Law of Conservation of Matter
Dalton's Theory of Matter
