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