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