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