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