A) 23 B) 50 C) 51 D) 60
A) 7 B) 3 C) 1 D) 17
A) 5 B) 9 C) 103 D) 45
A) 33 B) 3 C) 4 D) 15
A) Noble Gases B) Halogens C) Alkaline Earth Metals D) Alkaline Metals
A) 14 B) 14.007 C) 7 D) 2
A) 6 B) 56 C) 2 D) 137
A) 7 B) 1 C) 6 D) 2
A) Phosphorus is a non-metal gas. B) Chlorine is a liquid non-metal. C) Tellurium is a solid metalloid. D) Mercury is a solid metal.
A) 96 B) 5 C) 42 D) 6
A) 3 B) 7 C) 2 D) 4
A) Bohr B) Dalton C) Rutherford D) Thomson
A) Dalton B) Thomson C) Bohr D) Rutherford
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Dalton B) Thomson C) Bohr D) Rutherford
A) Dalton, Thomson, Bohr, Rutherford B) Dalton, Rutherford, Thomson, Bohr C) Dalton, Thomson, Rutherford, Bohr D) Bohr, Rutherford, Dalton, Thomson
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) chemical change B) physical property C) physical change D) chemical property
A) protons and neutrons B) neutrons and electrons C) protons and orbits D) protons and electrons
A) Carbon and Boron B) Phosphorus and Silicon C) Argon and Krypton D) Mercury and Thallium
A) Electron Cloud B) Dalton's Model C) Rutherford's Model D) Bohr's Model E) Thomson's Model
A) atoms are tiny solid spheres B) electrons orbit totally randomly around the nucleus C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) nucleus B) region C) period D) group
A) Lithium B) Magnesium C) Beryllium D) Chlorine
A) Number of Neutrons B) Period Number C) State of Matter D) Group Number
A) group number B) period number C) number of protons D) number of neutrons
A) the same as the number of electrons B) the same as the number of energy levels C) greater than the mass number D) the mass number minus the atomic number
A) State of Matter B) Number of Neutrons C) Period Number D) Group Number
A) Nitrogen B) Francium 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. |