A) Bohr B) Thomson C) Rutherford D) Dalton
A) Proton B) Neutron C) Electron D) Quark
A) Protons and neutrons B) Neutrons and electrons C) Protons and electrons D) Electrons only
A) Proton B) Neutron C) Quark D) Electron
A) Quantum model B) Bohr’s model C) Rutherford’s model D) Dalton’s model
A) Dalton B) Thomson C) Bohr D) Einstein
A) No charge B) Positive C) Neutral D) Negative
A) Number of isotopes B) Mass number C) Number of neutrons D) Number of protons
A) Ion B) Atom C) Molecule D) Nucleus
A) Bohr’s model B) Dalton’s model C) Thomson’s model D) Rutherford’s model
A) Neutron B) Positron C) Proton D) Electron
A) Oxygen B) Ozone C) Osmium D) Oxide
A) 6 B) 12 C) 14 D) 8
A) Dalton B) Thomson C) Bohr D) Schrödinger
A) Protons < Electrons B) Protons > Electrons C) Protons = Electrons D) None of these
A) Shell B) Orbit C) Nucleus D) Core
A) Proton B) Neutron C) Electron D) Positron
A) Between protons B) In the electron cloud C) Inside neutrons D) Inside the nucleus
A) Proton B) Molecule C) Electron D) Neutron
A) Molecule B) Atom C) Nucleus D) Cell
A) Dalton B) Democritus C) Aristotle D) Einstein
A) 11 B) 10 C) 12 D) 13
A) FALSE B) TRUE
A) TRUE B) FALSE
A) FALSE B) TRUE
A) DISAGREE B) AGREE
A) AGREE B) DISAGREE
A) Aristotle B) Dalton C) Thomson D) Democritus
A) Dalton B) Thomson C) Aristotle D) Democritus
A) Thomson B) Rutherford C) Dalton D) Democritus
A) Proust B) Schrodinger C) Hantaro D) Rutherford
A) tau neutrino B) down C) gluon D) strange
A) bottom B) photon C) electron neutrino D) top
A) HIggs boson B) W boson C) Muon neutrino D) Up
A) neutron B) quarks C) electron D) proton
A) Most particles bounced back B) Atoms are mostly empty space C) Alpha particles passed through foil D) All of the above
A) atoms of the same type, each with a consistent mass, make up an element. B) small building blocks called cells make up matter. Atoms are the smallest building blocks of elements and are capable of participating in chemical reactions. 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) 12 B) 13 C) 10 D) 11
A) 20 B) 10 C) 8 D) 9
A) Oxygen B) Sodium C) Neon D) Fluorine
A) Electron B) Proton C) Neutron D) Quark
A) Beryllium B) Hydrogen C) Boron D) Lithium
A) Proton (+), Neutron (0), Electron (–) B) Proton (0), Neutron (+), Electron (–) C) Proton (–), Neutron (+), Electron (0) D) Proton (+), Electron (0), Neutron (–)
A) 16 B) 18 C) 32 D) 8
A) Number of neutrons B) Valence electrons C) Atomic mass D) Atomic number
A) Quantum mechanical model B) Dalton C) Bohr D) Thomson
A) Atoms changed structure B) Old theories were incorrect C) New evidence supports better models D) Elements stopped reacting
A) Bohr placed electrons in energy levels B) Bohr claimed atoms were indivisible C) Bohr said electrons were in the nucleus D) Bohr ignored the nucleus
A) Correct, because electrons never change orbits. B) Correct, because electrons have fixed paths. C) Incorrect, because electrons move in regions of probability. D) Correct, as Bohr proved this model.
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. |