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