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