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