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