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