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