Test 4
Unit 4 test
Please answer the following questions. You may use your Periodic table and vocab (65 points)
Match the following items.
(14 points)
1. emitted from a cathode ray tube
Bohr
2. discovered the neutron
Chadwick
3. discovered the electron
JJ
4. postulated the quantum atom
nucleus
5. discovered the proton
electrons
6. father of atomic theory
Dalton
7. location of most of the mass of the atom
Bohr
1. unlike charges
attract
2. like charges
repel
3. charge on a neutron
nonmetals
4. location of an electron
periodicity shell
5. low ionization energies
noble gases
6. repeating nature of atomic structure
neutral
7. least reactive family
True and Faults
(6 points)
A gamma ray is a very high speed particle with no charge.
False
Ionization energy is required to add an electron to a neutral atom.
False
The nuclear product of radioactive decay is called the daughter nuclide.
True
A gamma ray emission results in the release of energy without any apparent change in mass or nuclear charge.
True
The half-lives of unstable isotopes vary from milliseconds to billions of years.
True
The combining of atoms is known as nuclear fusion.
True
Multiple choice
(27points)
The man responsible for discovering that the atom is mostly space is:
Rutherford
A false statement concerning matter is:
All matter contains mass.
The true statement concerning the atomic nucleus is:
It is made up of electrons only.
The element
The element
has how many protons? 47 has how many neutrons?
146
Which statement is true?
Isotopes of a given element have very similar chemical properties.
The atomic number of an atom is equivalent to the number of: protons Rutherford coined the term used for the simplest positive charged particle and called it the: neutron
An alpha particle is: an electron
Select all that apply.
In the vertical columns of the periodic table:
All the physical properties are identical.
The number of
Please answer the following questions. You may use your Periodic table and vocab (65 points)
Match the following items.
(14 points)
1. emitted from a cathode ray tube
Bohr
2. discovered the neutron
Chadwick
3. discovered the electron
JJ
4. postulated the quantum atom
nucleus
5. discovered the proton
electrons
6. father of atomic theory
Dalton
7. location of most of the mass of the atom
Bohr
1. unlike charges
attract
2. like charges
repel
3. charge on a neutron
nonmetals
4. location of an electron
periodicity shell
5. low ionization energies
noble gases
6. repeating nature of atomic structure
neutral
7. least reactive family
True and Faults
(6 points)
A gamma ray is a very high speed particle with no charge.
False
Ionization energy is required to add an electron to a neutral atom.
False
The nuclear product of radioactive decay is called the daughter nuclide.
True
A gamma ray emission results in the release of energy without any apparent change in mass or nuclear charge.
True
The half-lives of unstable isotopes vary from milliseconds to billions of years.
True
The combining of atoms is known as nuclear fusion.
True
Multiple choice
(27points)
The man responsible for discovering that the atom is mostly space is:
Rutherford
A false statement concerning matter is:
All matter contains mass.
The true statement concerning the atomic nucleus is:
It is made up of electrons only.
The element
The element
has how many protons? 47 has how many neutrons?
146
Which statement is true?
Isotopes of a given element have very similar chemical properties.
The atomic number of an atom is equivalent to the number of: protons Rutherford coined the term used for the simplest positive charged particle and called it the: neutron
An alpha particle is: an electron
Select all that apply.
In the vertical columns of the periodic table:
All the physical properties are identical.
The number of