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