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