A) 50 B) 60 C) 23 D) 51
A) 3 B) 17 C) 1 D) 7
A) 9 B) 103 C) 45 D) 5
A) 3 B) 4 C) 33 D) 15
A) Halogens B) Alkaline Earth Metals C) Noble Gases D) Alkaline Metals
A) 2 B) 7 C) 14.007 D) 14
A) 6 B) 56 C) 137 D) 2
A) 6 B) 1 C) 2 D) 7
A) Mercury is a solid metal. B) Chlorine is a liquid non-metal. C) Tellurium is a solid metalloid. D) Phosphorus is a non-metal gas.
A) 6 B) 96 C) 5 D) 42
A) 2 B) 7 C) 4 D) 3
A) Thomson B) Dalton C) Rutherford D) Bohr
A) Bohr B) Rutherford C) Dalton D) Thomson
A) Rutherford B) Thomson C) Dalton D) Bohr
A) Bohr B) Thomson C) Rutherford D) Dalton
A) Dalton, Rutherford, Thomson, Bohr B) Dalton, Thomson, Bohr, Rutherford C) Dalton, Thomson, Rutherford, Bohr D) Bohr, Rutherford, Dalton, Thomson
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) chemical property C) chemical change D) physical property
A) neutrons and electrons B) protons and electrons C) protons and orbits D) protons and neutrons
A) Phosphorus and Silicon B) Argon and Krypton C) Mercury and Thallium D) Carbon and Boron
A) Dalton's Model B) Electron Cloud C) Bohr's Model D) Rutherford's Model E) Thomson's Model
A) atoms are tiny solid spheres B) the atom is mostly empty space C) the atom is a positively charged sphere with electrons embedded in it D) electrons orbit totally randomly around the nucleus
A) region B) nucleus C) group D) period
A) Lithium B) Beryllium C) Magnesium D) Chlorine
A) State of Matter B) Group Number C) Period Number D) Number of Neutrons
A) period number B) number of protons C) number of neutrons D) group number
A) the same as the number of electrons B) the mass number minus the atomic number C) greater than the mass number D) the same as the number of energy levels
A) State of Matter B) Group Number C) Number of Neutrons D) Period 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. |