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