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Theories and Atoms
Theories and Atoms
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#theory #atoms
Flashcards
16 cards
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Questions
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Answers
1
What determines the element?
# of electrons
# of protons, neutrons & electrons
# of protons
# of neutrons
2
Groups of the periodic table represent elements that share _____________ properties
No similar
Kind of similar
Very similar
3
An electron has a greater mass than a proton.
False
True
4
Atoms combine to form
Electrons
Neutrons
Molecules
Protons
5
What is the charge of an atom that has gained an electron?
Neutral (=)
Negative (-)
Positive (+)
6
A theory can never
Become a law
Be true
Be proven
Change
7
How many electrons can the first electron shell hold?
8
4
6
2
8
What is the mass of an electron?
0 AMU
2 AMU
1 AMU
3 AMU
9
What is the smallest form of a pure substance(element) that is still considered that substance?
Atom
Proton
Molecule
Neutron
10
Where is all of the mass of an atom located?
Outside the nucleus
In the nucleus
In the cloud
11
Once a theory is proven it becomes a law.
False
True
12
What is located in the nucleus of an atom?
Protons
Neutrons
Electrons
Protons & Neutrons
13
Theories improve over time with new evidence discovered by new technology.
True
False
14
The atomic number represents which particle located in the nucleus of the atom?
Electrons
Protons
Neutrons
Ions
15
The total number of the protons and neutrons added together give the atom its _________.
Charge
Mass
Evaporation rate
Elemental strength
16
A scientific theory is best supported by:
Some evidence
Very little evidence
No evidence
A lot of evidence
