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