A) 51 B) 60 C) 50 D) 23
A) 7 B) 17 C) 3 D) 1
A) 5 B) 45 C) 9 D) 103
A) 33 B) 15 C) 4 D) 3
A) Noble Gases B) Halogens C) Alkaline Earth Metals D) Alkaline Metals
A) 14 B) 2 C) 14.007 D) 7
A) 56 B) 137 C) 2 D) 6
A) 6 B) 1 C) 7 D) 2
A) Phosphorus is a non-metal gas. B) Chlorine is a liquid non-metal. C) Tellurium is a solid metalloid. D) Mercury is a solid metal.
A) 6 B) 96 C) 5 D) 42
A) 2 B) 4 C) 3 D) 7
A) Bohr B) Dalton C) Thomson D) Rutherford
A) Dalton B) Thomson C) Bohr D) Rutherford
A) Dalton B) Thomson C) Rutherford D) Bohr
A) Thomson B) Dalton C) Bohr D) Rutherford
A) Dalton, Thomson, Bohr, Rutherford B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Rutherford, Thomson, Bohr D) Dalton, Thomson, Rutherford, 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) physical property B) chemical change C) physical change D) chemical property
A) protons and electrons B) neutrons and electrons C) protons and neutrons D) protons and orbits
A) Mercury and Thallium B) Argon and Krypton C) Carbon and Boron D) Phosphorus and Silicon
A) Thomson's Model B) Electron Cloud C) Dalton's Model D) Bohr's Model E) Rutherford's Model
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is mostly empty space D) the atom is a positively charged sphere with electrons embedded in it
A) period B) group C) region D) nucleus
A) Beryllium B) Magnesium C) Lithium D) Chlorine
A) Period Number B) State of Matter C) Number of Neutrons D) Group Number
A) group number B) period number C) number of protons D) number of neutrons
A) the same as the number of electrons B) the mass number minus the atomic number C) the same as the number of energy levels D) greater than the mass number
A) State of Matter B) Number of Neutrons C) Group Number D) Period Number
A) Manganese B) Francium C) Nitrogen D) Carbon
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. |