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