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