A) Thomson B) Bohr C) Dalton D) Rutherford
A) Electron B) Proton C) Quark D) Neutron
A) Electrons only B) Neutrons and electrons C) Protons and electrons D) Protons and neutrons
A) Quark B) Electron C) Proton D) Neutron
A) Quantum model B) Dalton’s model C) Bohr’s model D) Rutherford’s model
A) Bohr B) Thomson C) Dalton D) Einstein
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) Ion B) Molecule C) Atom D) Nucleus
A) Dalton’s model B) Rutherford’s model C) Thomson’s model D) Bohr’s model
A) Positron B) Neutron C) Proton D) Electron
A) Oxygen B) Oxide C) Osmium D) Ozone
A) 8 B) 12 C) 14 D) 6
A) Schrödinger B) Dalton C) Bohr D) Thomson
A) None of these B) Protons < Electrons C) Protons > Electrons D) Protons = Electrons
A) Nucleus B) Orbit C) Core D) Shell
A) Positron B) Neutron C) Proton D) Electron
A) Between protons B) Inside the nucleus C) Inside neutrons D) In the electron cloud
A) Molecule B) Neutron C) Electron D) Proton
A) Cell B) Nucleus C) Molecule D) Atom
A) Aristotle B) Dalton C) Democritus D) Einstein
A) 12 B) 10 C) 13 D) 11
A) FALSE B) TRUE
A) FALSE B) TRUE
A) FALSE B) TRUE
A) DISAGREE B) AGREE
A) AGREE B) DISAGREE
A) Aristotle B) Democritus C) Thomson D) Dalton
A) Dalton B) Democritus C) Aristotle D) Thomson
A) Democritus B) Rutherford C) Thomson D) Dalton
A) Schrodinger B) Rutherford C) Hantaro D) Proust
A) strange B) tau neutrino C) gluon D) down
A) photon B) electron neutrino C) bottom D) top
A) Muon neutrino B) Up C) W boson D) HIggs boson
A) neutron B) electron C) quarks D) proton
A) Atoms are mostly empty space B) Alpha particles passed through foil 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 a certain element exhibit distinct features that distinguish them from atoms of any other element. C) atoms from a variety of elements combine to form an element in specific ration D) atoms of the same type, each with a consistent mass, make up an element.
A) 10 B) 11 C) 13 D) 12
A) 9 B) 8 C) 20 D) 10
A) Oxygen B) Neon C) Fluorine D) Sodium
A) Electron B) Quark C) Neutron D) Proton
A) Beryllium B) Lithium C) Boron D) Hydrogen
A) Proton (–), Neutron (+), Electron (0) B) Proton (+), Neutron (0), Electron (–) C) Proton (0), Neutron (+), Electron (–) D) Proton (+), Electron (0), Neutron (–)
A) 18 B) 8 C) 16 D) 32
A) Valence electrons B) Number of neutrons C) Atomic number D) Atomic mass
A) Dalton B) Thomson C) Bohr D) Quantum mechanical model
A) Old theories were incorrect B) Atoms changed structure C) Elements stopped reacting 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, because electrons never change orbits. D) Correct, as Bohr proved this model.
A) Student B, because electrons change easily. B) Neither, because neutrons define the element. C) Student A, because protons determine atomic number. D) Both are correct since both are charged. |