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