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