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