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Matter 4
Test Description: Atoms and Atomic Structure
Instructions: Answer all questions to get your test result.
1) What scientist first developed the idea of the atom?
A
Earnest Rutherford
B
Democritus
C
John Dalton
D
Neils Bohr
2) What is the name of the most current atomic model?
A
Chocolate Chip Cookie model
B
Billiard Ball model
C
Electron Cloud model
D
Orbiting model
3) Which part of an atom contains the most mass?
A
Prion
B
Electron
C
Proton
D
Neutron
4) What part of an atom is refered to by the atomic number?
A
Protons
B
Quarks
C
Neutrons
D
Electrons
5) What part of an atom is refered to by the mass number?
A
Protons and Neutrons
B
Protons and Electrons
C
Neutrons and Electrons
D
Just the Protons
6) If an atom has a mass number of 33 and has 17 neutrons in the nucleus, what else is true about this atom?
A
It has 17 electrons orbiting around the nucleus.
B
It is an atom of Chlorine.
C
The atom is classified as a metal.
D
It has an atomic number of 16.
7) What term is used to refer to two atoms of the same element with different atomic masses?
A
Ions
B
Isotopes
C
Quarks
D
Twinkies
8) If a neon atom has the second electon level completely filled, how many electrons does the atom contain total?
A
8
B
2
C
18
D
10
9) If an atom of atomic number 4 has a +2 overall charge, how many electrons does the atom contain?
A
2
B
6
C
8
D
4
10) Why is the mass of an atom's electrons not included in the mass number?
A
The electrons' negative charge cancels out their mass.
B
Electrons move so fast that their mass cannot be measured.
C
The electrons' mass is represented in the atomic number.
D
The electrons are much less massive than the rest of the atom.
*select an answer for all questions
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