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