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