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