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