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