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