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