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