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PS-U3-Review Flashcards | StudBud
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PS-U3-Review
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atomic structure
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
This public figure did not believe in atoms, everyone took his word for it for over 2000 yrs.
Democritus
Aristotle
Thomson
Dalton
2
Lewis Dot Structures: What tells you how many dots to put?
Valence Electrons
Number of Neutrons
Total electrons
Number of Protons
3
Matter is anything that takes up space and _______.
Has mass
Has weight
Has volume
Has space
4
This subatomic particle is NEGATIVE.
Protons
Electrons
Neutrons
5
Bohr Models: rings can hold _____, _____, and ______ electrons.
2, 4, 18
2, 4, 16
2, 8, 18
2, 8, 32
6
The larger number found at the bottom of an element square is the _____.
Atomic Mass
Element Symbol
Element Name
Atomic Number
7
Lewis Dot Structure: What is the shortcut for finding the number of dots?
Make a Bohr Model and count.
Just the electrons.
Look at the Group Number.
8
___________ came up with the Atomic Theory.
Bohr
Dalton
Schrodinger
Chadwick
9
The smaller number found at the top of an element square is the _____.
Element Name
Element Symbol
Atomic Number
Atomic Mass
10
ALL matter is made up of _________.
Cells
Matter
Atoms
Cheese
11
This subatomic particle is POSITIVE.
Electrons
Protons
Neutrons
12
To calculate NEUTRONS you do what?
Atomic Mass - Atomic Number
Look at the atomic number
13
This scientist discovered the model of the atom that we use TODAY.
Democritus
Bohr
Chadwick
Thomson
14
Protons are found _______.
In the electron cloud
In the nucleus
15
Electrons are found _______.
In the electron cloud
In the nucleus
16
Lewis Dot Structures represent ____________.
Just the valence electrons.
ALL of the electrons
Only protons and neutrons.
17
This scientist conducted the Gold Foil Experiment and discovered the nucleus.
Thomson
Rutherford
Schrodinger
Chadwick
18
_____ and ______ have mass.
Neutrons and Electrons
Electrons and Protons
Protons and Neutrons
19
This scientist was the first person to ever come up with the idea of an atom.
Aristotle
Democritus
Dalton
Rutherford
20
This subatomic particle is NEUTRAL.
Protons
Electrons
Neutrons
21
Neutrons are found _______.
In the electron cloud
In the nucleus
22
Bohr Models represent ____________.
Just the valence electrons.
ALL of the electrons
Only protons and neutrons.
23
To calculate ELECTRONS you do what?
Atomic Mass - Atomic Number
Look at the atomic number
24
Isotopes have the same number of _____, but different number of ______.
protons, electrons
neutrons, protons
electrons, protons
protons, neutrons
25
To calculate PROTONS you do what?
Look at the atomic number
Atomic Mass - Atomic Number
