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