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