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