Carbon with a mass number of 12

Identify the correct chronological order for Atomic Theory.

Greeks, Boyle, Dalton, Thomson, Rutherford

Which of the following is NOT one of Dalton's tenets of Atomic Theory?

Atoms are a diffuse positive cloud, with electrons embedded within

The atomic mass of an element is defined as

The weighted average of all of the element's naturally-occuring isotopes

The mass number of an atom is calculated by

Adding the protons and neutrons

Rutherford is known for:

The gold-foil experiment, atoms are mostly empty space with a dense core

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Phys. Setting Chemistry Topic 1 Quiz

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A quiz designed around the Regents curriculum for high school chemistry.

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Questions 15

Answers

1
What is the nuclear charge of a hydrogen atom?
1-
2+
1+
Neutral
2
C-12 stand for what?
Calcium with a mass number of 12
Carbon with a mass number of 12
Copper with a mass number of 12
Chlorine with a mass number of 12
3
Which sub-atomic particles are located within the nucleus?
Neutrons and Positrons
Protons and Electrons
Protons and Neutrons
Protons, Positrons, and Nucleons
4
Where is most of the mass in an atom located?
Orbitals
Nucleus
Diffuse, positive cloud
Quantum levels
5
Identify the correct chronological order for Atomic Theory.
Greeks, Boyle, Dalton, Thomson, Rutherford
Greeks, Boyle, Rutherford Thomson, Dalton
Greeks, Boyle, Thomson, Dalton, Rutherford
Boyle, Greeks, Rutherford, Dalton, Thomson
6
Which one of these is NOT a model for the atom?
Elemental model
Plum-pudding model
Planetary model
Wave-mechanical model
7
Which of the following is NOT one of Dalton's tenets of Atomic Theory?
All atoms of a given element are identical
Atoms of different elements are different, varying by mass
Atoms are a diffuse positive cloud, with electrons embedded within
Atoms are hard, indivisible spheres
8
The atomic mass of an element is defined as
The sum of the protons and neutrons in an atom of the given element
The average of all the element's naturally-occuring isotopes
The weighted average of all of the element's naturally-occuring isotopes
The sum of all the subatomic particles in an atom of the given element
9
Isotopes of a given element vary in
Neutron count
Positron count
Proton count
Electron count
10
The mass number of an atom is calculated by
Adding the protons and electrons
Calculating the weighted average of all the naturally-occuring isotopes
Subtracting the protons by the electrons
Adding the protons and neutrons
11
The number of protons within the nucleus of an atom of a given element is equivalent to that element's
Mass number
Electron configuration
Atomic number
Atomic mass
12
H-1, H-2, and H-3 are considered to be what?
Isotopes of Helium
Ions of Hydrogen
Isotopes of Hydrogen
Ions of Helium
13
All atoms by definition have what kind of charge?
Positive
Negative
Neutral
Voltaic
14
According to the wave-mechanical model, electrons are outside of the nucleus, located in?
Planetary orbit
Orbs
Orbitals
Orbits
15
Rutherford is known for:
Proving that Ag (Silver), and Au (Gold), are themselves elements
The Cathode Ray Tube experiment, that proved the existence of electrons
Working at the CERN particle laboratory in Switzerland
The gold-foil experiment, atoms are mostly empty space with a dense core

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