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