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