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