Dalton's atomic theory is pictured. What is the modern viewpoint on #4?

This can be described by the Law of Conservation of Matter

Dalton's atomic theory is pictured. What is the modern viewpoint on #2?

While atom identity stays same, they can change (isotopes)

Dalton's atomic theory is pictured. What is the modern viewpoint on #1?

Those are protons, electrons, neutrons, quarks, and gluons

Dalton's atomic theory is pictured. What is the modern viewpoint on #3?

This can be described by the Law of Definite Composition

What did Ernest Rutherford do?

Shot + charged particles at a thin piece of gold foil

atoms with the same number of protons, but not neutrons

the number of protons found in the nucleus, the # of protons & electrons found in nucleus (neutral atom)

Protons that don’t equal electrons

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Atomic Structure and History

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A #chemistry Quiz! with #atomicstructure and #atomichistory

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Questions 24

Answers

1
In an ion, what does a + indicate?
Electron loss
Electron gain
Positive charge
Neutral atom
2
Mass # =
#protons + #electrons
atomic# + neutron#
#protons + #neutrons
#neutrons + #electrons
3
Dalton's atomic theory is pictured. What is the modern viewpoint on #4?
This can be described by the Law of Conservation of Matter
These are isotopes
This can be described by the Law of Definite Composition
This is how ions are formed
4
Dalton's atomic theory is pictured. What is the modern viewpoint on #2?
This law still holds true today
While atom identity stays same, they can change (isotopes)
None of the above
This law doesn't hold true today
5
True or false: Rutherford's experiment led to the finding of the nucleus.
True
False
6
What did JJ Thompson's experiments lead to?
The finding of the proton
The finding of the electron
The finding of the neutron
The finding of the ion
7
Dalton's atomic theory is pictured. What is the modern viewpoint on #1?
Most matter is made up of atoms, but not all
These particles are isotopes
Atoms can be changed
Those are protons, electrons, neutrons, quarks, and gluons
8
In an ion, what does a - indicate?
Positive charge
Electron loss
Neutral atom
Electron gain
9
Dalton's atomic theory is pictured. What is the modern viewpoint on #3?
This is just wrong
This can be described by the Law of Conservation of Matter
This can be described by the Law of Definite Composition
These are ions
10
What is the 3+ in this symbol?
Atomic Number
Rounded Mass
Mass Number
Ionic Charge
11
What model did Neils Bohr create?
Sub-atomic particles
Model of the Nucleus
Model of the Ion
Planetary Model of the Atom
12
Anions are
Atoms with a positive charge
Atoms with both a positive and negative charge
Atoms with neither a positive nor negative charge
Atoms with a negative charge
13
Neutrons
have a mass very close to or equal to a proton
all of the above
neutron # = mass # - proton #
have no charge
14
True or false: protons and neutrons are fundamental particles
False
True
15
Cations are
None of the above
Atoms with a negative charge
Atoms with an equally positive and negative charge
Atoms with a positive charge
16
What did Ernest Rutherford do?
Found the proton
Used a vacuum
Shot + charged particles at a thin piece of gold foil
Found the electron
17
Isotopes are
atoms with the same number of neutrons, but not electrons
atoms with the same number of neutrons, but not protons
atoms with an equal amount of protons and neutrons
atoms with the same number of protons, but not neutrons
18
Al, aluminum, has an atomic number of 17. What will the # of electrons be based on the picture?
20
17
14
37
19
The top number on this symbol is
the isotope
the atomic mass
the atmoic number
the electron count
20
The atomic number is
the number of electrons found in the nucleus
the number of protons found in the nucleus
the number of neutrons found in the nucleus
the # of protons & electrons found in nucleus (neutral atom)
21
What are ions?
Protons that equal neutrons
Protons that equal electrons
Protons that don’t equal electrons
Protons that don’t equal neutrons
22
What does the "1" represent in the symbols?
Mass #
Atomic #
Nothing
Proton #
23
The top number in this symbol is the
Mass #
Atomic Mass
Atomic #
Ionic Charge
24
The bottom number in this symbol is the
Atomic #
Atomic Mass
Ionic Charge
Mass #

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