Matter 4: Question Preview (ID: 7960)

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What scientist first developed the idea of the atom?
a) John Dalton
b) Democritus
c) Earnest Rutherford
d) Neils Bohr

What is the name of the most current atomic model?
a) Billiard Ball model
b) Chocolate Chip Cookie model
c) Electron Cloud model
d) Orbiting model

Which part of an atom contains the most mass?
a) Proton
b) Neutron
c) Electron
d) Prion

What part of an atom is refered to by the atomic number?
a) Neutrons
b) Electrons
c) Protons
d) Quarks

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

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) It has an atomic number of 16.
d) The atom is classified as a metal.

What term is used to refer to two atoms of the same element with different atomic masses?
a) Twinkies
b) Isotopes
c) Ions
d) Quarks

If a neon atom has the second electon level completely filled, how many electrons does the atom contain total?
a) 2
b) 8
c) 10
d) 18

If an atom of atomic number 4 has a +2 overall charge, how many electrons does the atom contain?
a) 2
b) 4
c) 6
d) 8

Why is the mass of an atom's electrons not included in the mass number?
a) Electrons move so fast that their mass cannot be measured.
b) The electrons' negative charge cancels out their mass.
c) The electrons' mass is represented in the atomic number.
d) The electrons are much less massive than the rest of the atom.

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