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Chapter 3 Chemistry Flashcards | StudBud
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Chapter 3 Chemistry
Chapter 3 Chemistry
30 terms
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Using it as a review game for the Atomic Theory unit for Chemistry.
Flashcards
30 cards
F
Practice quiz
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Host live
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Questions
30
Answers
1
According to Rutherford, where in the atom are electrons located?
in the nucleus
in circular orbits called electron shells
in the empty space surrounding the atom
distributed evenly all throughout the atom
2
If you had 2 moles of carbon how many grams would you have?
3.01x10^23
1.2x10^24
12.01
24.02
3
Given the mass number is 63 and the number of protons is 29, find the number of electrons
64
81
29
34
4
Neutrons have a ________ charge and are found _________.
neutral, in the nucleus
neutral, in the empty space around the nucleus
positive, in the nucleus
negative, in the electron shells
5
Atoms have a _______ charge.
none of these
neutral
positive
negative
6
Which of the following points from Dalton's atomic theory is incorrect?
Atoms cannot be created or destroyed during chemical reaction.
All atoms of the same element are identical.
All matter is composed of atoms.
Atoms can be joined, separated, or rearraged in reactions.
7
What subatomic particle(s) are located in the nucleus?
electrons and neutrons
protons and neutrons
protons and electrons
protons only
8
What is the first step in calculating the avg. atomic mass of isotopes?
add the masses together
multiply by the percentages
multiply by 100
multiply the masses by the percentages
9
How many protons does
28
13
Al have?
41
13
28
15
10
The first person to suggest the idea of atoms was ________.
an alchemist
Democritus
Dalton
Aristotle
11
The law of conservation of mass was developed by _______.
Niels Bohr
John Dalton
Antoine Lavoisier
Joseph Proust
12
Who did the following experiment...
Chadwick
Bohr
Thomson
Rutherford
13
Who did the following experiment...
Thomson
Chadwick
Thomsson
Rutherford
14
How many atoms are in a mole?
6.022 x 10-23
16
6.022 x 1023
It depends on the molar mass
15
Dalton's Atomic Theory included...
All of these
Everything is made of atoms
Atoms are indivisible
Atoms cannot be destroyed
16
The number 6.022 x 10
23
is also referred to as
A Gross
A Dozen
Avocado's number
Avogadro's number
17
What did Thomson see happen during his Cathode Ray Experiment?
Particle beam arced towards the negatively charged plate
Particle beam arced towards the positively charged plate.
18
Atoms of same element with different numbers of _________ are called _________.
protons, isotopes
electrons, ions
electrons, cations
neutrons, isotopes
19
Whose model is the following...
Dalton
Rutherford
Bohr
Thomson
20
Who discovered the electron?
Chadwick
Rutherford
Thomson
Bohr
21
The smallest subatomic particle is the ______.
neutron
none of these; they are all the same size
proton
electron
22
Given the mass number is 14 and the number of protons is 6, find the number of neutrons
14
8
6
12
23
What did Thomson discover about the atom?
The Electron
The Neutron
The Tron
The Proton
24
Whose model is the following...
Rutherford
Bohr
Dalton
Thomson
25
How do you find the molar mass of a substance?
It is the atomic mass written in grams
Multiply by 6.022 x 1023
Divide by 6.022 x 1023
It is always 6.022 x 1023
26
All isotopes of an element have the same atomic number ?
True
False
27
The first atomic theory was proposed by ________.
Chadwick
Lavoisier
Dalton
Thomson
28
Which of the following statements supports the law of definite proportions?
Water is always 89% oxygen and 11% hydrogen.
All matter is composed of atoms.
All atoms of the same element are identical.
The mass of the reactants is always the same as the products
29
What is the name of Rutherford's experiment?
Cathode Ray Experiment
Gold Foil Experiment
30
The law of definite proportions was developed by _____.
Joseph Proust
John Dalton
Niels Bohr
Antoine Lavoisier
