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