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