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