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