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