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