A) 50 B) 23 C) 60 D) 51
A) 3 B) 17 C) 1 D) 7
A) 5 B) 9 C) 103 D) 45
A) 3 B) 33 C) 15 D) 4
A) Alkaline Earth Metals B) Halogens C) Noble Gases D) Alkaline Metals
A) 7 B) 14.007 C) 2 D) 14
A) 56 B) 137 C) 6 D) 2
A) 2 B) 1 C) 7 D) 6
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 96 B) 5 C) 42 D) 6
A) 4 B) 2 C) 7 D) 3
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Rutherford B) Dalton C) Thomson D) Bohr
A) Bohr B) Dalton C) Thomson D) Rutherford
A) Bohr, Rutherford, Dalton, Thomson B) Dalton, Rutherford, Thomson, Bohr C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Thomson, Rutherford, 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) chemical change D) physical change
A) protons and neutrons B) protons and electrons C) protons and orbits D) neutrons and electrons
A) Mercury and Thallium B) Carbon and Boron C) Phosphorus and Silicon D) Argon and Krypton
A) Bohr's Model B) Dalton's Model C) Thomson's Model D) Rutherford's Model E) Electron Cloud
A) the atom is a positively charged sphere with electrons embedded in it B) electrons orbit totally randomly around the nucleus C) the atom is mostly empty space D) atoms are tiny solid spheres
A) region B) group C) nucleus D) period
A) Chlorine B) Magnesium C) Beryllium D) Lithium
A) State of Matter B) Group Number C) Period Number D) Number of Neutrons
A) period number B) number of neutrons C) group number D) number of protons
A) the same as the number of energy levels B) the mass number minus the atomic number C) the same as the number of electrons D) greater than the mass number
A) State of Matter B) Group Number C) Number of Neutrons D) Period Number
A) Francium B) Nitrogen C) Carbon D) Manganese
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. |