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