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