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