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