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