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