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