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