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