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