A) 60 B) 50 C) 23 D) 51
A) 3 B) 1 C) 7 D) 17
A) 9 B) 5 C) 103 D) 45
A) 15 B) 3 C) 33 D) 4
A) Alkaline Metals B) Halogens C) Alkaline Earth Metals D) Noble Gases
A) 7 B) 14.007 C) 14 D) 2
A) 6 B) 137 C) 56 D) 2
A) 2 B) 7 C) 6 D) 1
A) Phosphorus is a non-metal gas. B) Tellurium is a solid metalloid. C) Chlorine is a liquid non-metal. D) Mercury is a solid metal.
A) 42 B) 5 C) 6 D) 96
A) 7 B) 4 C) 2 D) 3
A) Bohr B) Dalton C) Thomson D) Rutherford
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Thomson B) Dalton C) Rutherford D) Bohr
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Dalton, Thomson, Bohr, Rutherford B) Dalton, Thomson, Rutherford, Bohr C) Dalton, Rutherford, Thomson, Bohr D) Bohr, Rutherford, Dalton, Thomson
A) proton = negative, electron = positive, neutron = no charge B) proton = positive, electron = negative, neutron = uncharged C) proton = positive, neutron = negative, electron = no charge D) proton = positive, electron = neutral, neutron = negative
A) chemical change B) physical change C) chemical property D) physical property
A) neutrons and electrons B) protons and electrons C) protons and orbits D) protons and neutrons
A) Argon and Krypton B) Phosphorus and Silicon C) Mercury and Thallium D) Carbon and Boron
A) Electron Cloud B) Dalton's Model C) Rutherford's Model D) Bohr's Model E) Thomson's Model
A) the atom is mostly empty space B) the atom is a positively charged sphere with electrons embedded in it C) electrons orbit totally randomly around the nucleus D) atoms are tiny solid spheres
A) nucleus B) period C) region D) group
A) Lithium B) Chlorine C) Beryllium D) Magnesium
A) Group Number B) Number of Neutrons C) State of Matter D) Period Number
A) number of protons B) group number C) period number D) number of neutrons
A) the mass number minus the atomic number B) the same as the number of energy levels C) greater than the mass number D) the same as the number of electrons
A) Group Number B) Number of Neutrons C) Period Number D) State of Matter
A) Manganese B) Nitrogen C) Francium D) Carbon
A) Yes, some Carbon atoms have 6 protons, some have 7 protons. B) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. |