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