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