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