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