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