A) Rutherford B) Bohr C) Thomson D) Dalton
A) Electron B) Quark C) Proton D) Neutron
A) Neutrons and electrons B) Protons and neutrons C) Electrons only D) Protons and electrons
A) Neutron B) Quark C) Electron D) Proton
A) Quantum model B) Dalton’s model C) Bohr’s model D) Rutherford’s model
A) Thomson B) Bohr C) Einstein D) Dalton
A) Positive B) Neutral C) No charge D) Negative
A) Number of isotopes B) Number of protons C) Mass number D) Number of neutrons
A) Atom B) Ion C) Molecule D) Nucleus
A) Thomson’s model B) Dalton’s model C) Bohr’s model D) Rutherford’s model
A) Proton B) Neutron C) Positron D) Electron
A) Oxygen B) Osmium C) Oxide D) Ozone
A) 12 B) 8 C) 14 D) 6
A) Schrödinger B) Dalton C) Bohr D) Thomson
A) Protons = Electrons B) Protons < Electrons C) None of these D) Protons > Electrons
A) Orbit B) Nucleus C) Core D) Shell
A) Electron B) Positron C) Neutron D) Proton
A) In the electron cloud B) Between protons C) Inside the nucleus D) Inside neutrons
A) Molecule B) Proton C) Neutron D) Electron
A) Nucleus B) Cell C) Atom D) Molecule
A) Einstein B) Aristotle C) Dalton D) Democritus
A) 11 B) 13 C) 12 D) 10
A) TRUE B) FALSE
A) FALSE B) TRUE
A) TRUE B) FALSE
A) DISAGREE B) AGREE
A) DISAGREE B) AGREE
A) Democritus B) Thomson C) Aristotle D) Dalton
A) Aristotle B) Dalton C) Democritus D) Thomson
A) Dalton B) Rutherford C) Democritus D) Thomson
A) Hantaro B) Rutherford C) Proust D) Schrodinger
A) strange B) tau neutrino C) down D) gluon
A) photon B) top C) bottom D) electron neutrino
A) W boson B) Up C) Muon neutrino D) HIggs boson
A) electron B) quarks C) proton D) neutron
A) Alpha particles passed through foil B) Atoms are mostly empty space C) Most particles bounced back D) All of the above
A) small building blocks called cells make up matter. Atoms are the smallest building blocks of elements and are capable of participating in chemical reactions. B) atoms of the same type, each with a consistent mass, make up an element. C) atoms from a variety of elements combine to form an element in specific ration D) atoms of a certain element exhibit distinct features that distinguish them from atoms of any other element.
A) 12 B) 11 C) 10 D) 13
A) 20 B) 10 C) 9 D) 8
A) Fluorine B) Oxygen C) Sodium D) Neon
A) Neutron B) Quark C) Proton D) Electron
A) Beryllium B) Hydrogen C) Boron D) Lithium
A) Proton (–), Neutron (+), Electron (0) B) Proton (0), Neutron (+), Electron (–) C) Proton (+), Neutron (0), Electron (–) D) Proton (+), Electron (0), Neutron (–)
A) 18 B) 16 C) 8 D) 32
A) Number of neutrons B) Atomic mass C) Valence electrons D) Atomic number
A) Thomson B) Dalton C) Quantum mechanical model D) Bohr
A) Elements stopped reacting B) Atoms changed structure C) Old theories were incorrect D) New evidence supports better models
A) Bohr ignored the nucleus B) Bohr placed electrons in energy levels C) Bohr claimed atoms were indivisible D) Bohr said electrons were in the nucleus
A) Incorrect, because electrons move in regions of probability. B) Correct, because electrons have fixed paths. C) Correct, as Bohr proved this model. D) Correct, because electrons never change orbits.
A) Both are correct since both are charged. B) Student B, because electrons change easily. C) Student A, because protons determine atomic number. D) Neither, because neutrons define the element. |