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